A vulnerability in the JCE editor extension for Joomla allows the creation of new editor profiles for unauthenticated users, ultimately resulting in PHP code upload and execution.
CVE-2026-48907
“—” beside the score: it is equal to NVD's CVSS score.
Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-16), indicating real-world exploitation has been confirmed by US federal agencies. It is also listed on ENISA's EU Known Exploited Vulnerabilities catalogue (Source: ENISA EUVD). NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.
Also known asEUVD-2026-34789 (ENISA EUVD) · GHSA-c3f5-4g7f-qjqj (GitHub Security Advisories)Source: ENISA EUVD
- Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low mission impact
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALhigh confidence
- EG Risk
- 99EG Risk 99/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation100% × 40%Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Attend at low mission impact; Act at medium or high.Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low mission impact and as soon as possible at medium or high. - EPSS PROB
- 85%
- EPSS %ILE
- 99th
- KEV
- ⚠ Exploited
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 85% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- CISA KEV and ENISA EU KEV (Source: ENISA EUVD) and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Act at medium mission impactAttend at low mission impact; Act at medium or high.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
ENISA EU KEV: listed July 6, 2026, reported by CERT-PL.
Source: ENISA EUVD (EU Known Exploited Vulnerabilities catalogue), reproduced with acknowledgement. How a listing moves the EG score
SSVC (CISA's decision table, applied by EchelonGraph)Attend at low mission impact; Act at medium or high.
No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low mission impact and as soon as possible at medium or high.
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.
No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.
The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
CISA required action“Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.”
Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://www.joomlacontenteditor.net/news/jce-security-update-and-a-free-patch-for-older-sites · https://www.joomlacontenteditor.net/support/changelog/editor · https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk · https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk · https://nvd.nist.gov/vuln/detail/CVE-2026-48907
Published
June 5, 2026
Last Modified
July 23, 2026
Advisory Details (3)
Auto-updated Nov 1, 2026JCE security update, and a free patch for older sites
https://www.joomlacontenteditor.net/news/jce-security-update-and-a-free-patch-for-older-sitesKnown Exploited Vulnerabilities Catalog | CISA
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48907Vendor Advisories for CVE-2026-48907(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 17× in last 7d / 127× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 959 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 859 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 18:04 UTCEG score recompute
- 2026-11-01 18:04 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-31 17:31 UTCEG score recompute
- 2026-10-31 17:31 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-30 16:58 UTCEG score recompute
- 2026-10-30 16:58 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 85% · 99th percentile
- 2026-10-29 16:25 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-29 16:01 UTCEG score recompute
- 2026-10-29 16:00 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-28 15:28 UTCEG score recompute
- 2026-10-28 15:28 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 85% · 99th percentile
- 2026-10-27 14:54 UTCEG score recompute
- 2026-10-27 14:54 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-26 14:21 UTCEG score recompute
- 2026-10-26 14:21 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 85% · 99th percentile
- 2026-10-25 13:47 UTCEG score recompute
- 2026-10-25 13:47 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-25 13:46 UTCENISA EU KEV listingEUVD-2026-34789 · listed July 6, 2026 · reported by CERT-PL · Source: ENISA EUVD
- 2026-10-24 19:48 UTCEG score recompute
- 2026-10-24 19:47 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-23 19:14 UTCEG score recompute
Show 75 moreShow fewer
- 2026-10-23 19:13 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-22 18:40 UTCEG score recompute
- 2026-10-22 18:40 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-21 18:07 UTCEG score recompute
- 2026-10-21 18:06 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-20 17:33 UTCEG score recompute
- 2026-10-20 17:33 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-19 16:59 UTCEG score recompute
- 2026-10-19 16:59 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-18 16:25 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-18 03:34 UTCEG score recompute
- 2026-10-17 17:40 UTCEG score recompute
- 2026-10-17 17:40 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-16 17:06 UTCEG score recompute
- 2026-10-16 17:06 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-16 16:42 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-15 16:31 UTCEG score recompute
- 2026-10-15 16:31 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-14 15:57 UTCEG score recompute
- 2026-10-14 15:56 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-13 15:22 UTCEG score recompute
- 2026-10-13 15:21 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-12 14:48 UTCEG score recompute
- 2026-10-12 14:48 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 06:04 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 01:42 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 21:21 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 19:43 UTCEG score recompute
- 2026-10-11 16:58 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 16:58 UTCEG score recompute
- 2026-10-11 14:22 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-11 12:35 UTCEG score recompute
- 2026-10-11 12:35 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 08:14 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 03:52 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 23:30 UTCEG score recompute
- 2026-10-10 23:30 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-10 19:08 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 14:45 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 10:23 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 06:01 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-10 01:39 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-09 21:17 UTCEG score recompute
- 2026-10-09 21:17 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-09 16:55 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-09 12:33 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-09 08:10 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-09 03:49 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 23:27 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 19:05 UTCEG score recompute
- 2026-10-08 19:05 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-08 14:42 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 10:20 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 05:58 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-08 01:36 UTCEG score recompute
- 2026-10-08 01:35 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 16% · 96th percentile
- 2026-10-07 21:14 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-07 16:52 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-07 12:28 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-07 08:06 UTCGHSA enrichmentGHSA-c3f5-4g7f-qjqj · GitHub severity CRITICAL · GitHub CVSS 9.8
Publicly available exploits
(10 references)Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries, 5 GitHub PoCs), as are 1 Nuclei detection template, 1 GitHub checker repository. A detection template checks whether a system is affected; it is not necessarily exploit code. A GitHub repository named or described as a checker or scanner checks whether a system is affected; it is not necessarily exploit code. No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.
- Metasploitexploit/multi/http/joomla_com_jce_unauth_file_upload_rce✓ verifiedPublished Jul 29, 2026
Joomla Content Editor Unauthenticated File Upload RCE
Open source ↗ - Exploit-DBEDB-52645Published Aug 17, 2026
Joomla JCE_2.9.15 - Remote Code Execution
Open source ↗ - Exploit-DBEDB-52630Published Aug 10, 2026
Joomla 2.9.99.4 - Unauthenticated Remote Code Execution
Open source ↗ - GitHub PoCK3ysTr0K3R/CVE-2026-48907Published Jun 29, 2026
CVE-2026-48907 – Joomla JCE Unauthenticated Remote Code Execution (RCE)
Open source ↗ - GitHub checkergh1mau/masta-cve-2026-48907Published Jun 27, 2026
cve-2026-48907 scanner
Open source ↗ - GitHub PoC0xgh057r3c0n/CVE-2026-48907Published Jun 22, 2026
CVE-2025-48907 - Unauthenticated RCE exploit for Joomla JCE < 2.9.99.5
Open source ↗ - Nucleihttp/cves/2026/CVE-2026-48907.yamlPublished Jun 13, 2026
Joomla! JCE extension < 2.9.99.5 unauthenticated RCE
Open source ↗ - GitHub PoC0xBlackash/CVE-2026-48907Published Jun 12, 2026
CVE-2026-48907
Open source ↗ - GitHub PoC0xredash/CVE-2026-48907Published Jun 12, 2026
CVE-2026-48907
Open source ↗ - GitHub PoCywh-jfellus/CVE-2026-48907Published Jun 11, 2026
PoC for CVE-2026-48907 - Joomla! JCE extension < 2.9.99.5 unauthenticated RCE
Open source ↗
Related CVEs(same CWE)
Frequently asked(6)
What is CVE-2026-48907?
When was the CVE record for CVE-2026-48907 published?
Is CVE-2026-48907 actively exploited?
What is the CVSS score of CVE-2026-48907?
Which products are affected by CVE-2026-48907?
How do I remediate CVE-2026-48907?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-48907
Is Your Infrastructure Affected by CVE-2026-48907?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.