CVE-2026-111862

CRITICALPre-NVD 9.89.8
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-19. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-104460 (ENISA EUVD) · GHSA-6qfj-hq55-w68p (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan mitigationNo 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 on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.8Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Rank Math SEO PRO for WordPress is affected by a supply-chain compromise in a subset of version 3.0.123 packages downloaded or updated between October 15, 2026 at 20:02 UTC and October 16, 2026 at 07:12 UTC. Rank Math states that the affected plugin files contained malware that could compromise a website if the plugin was activated and directs sites that activated an affected package to treat the website as compromised. The malware may establish persistent access, communicate with rank1cdn[.]com, recreate hidden backdoors on page visits, and expose WordPress credentials, database credentials, API keys, and other secrets accessible to the web server. Rank Math identifies three malicious wp_options keys, hidden PHP backdoors, unauthorized administrator accounts, a fake WordPress core file, PHP-executable .cache files, and a system cron marker as incident indicators. Only packages obtained during the vendor-confirmed window are claimed as affected; version 3.0.123 alone is not sufficient to establish compromise. Rank Math removed the affected files and released version 3.0.124 as the clean replacement.

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
59
EG Risk 59/100

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.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (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 on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

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
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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 on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation none (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 if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (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

Published

October 19, 2026

Last Modified

October 20, 2026

Advisory Details (4)

Auto-updated Oct 28, 2026
No fix on record yet.
Web page

Rank Math PRO 3.0.123 Security Incident: How to Secure Your Website » Rank Math

https://rankmath.com/kb/pro-3-0-123-security-incident/
Web page

The Official Rank Math SEO Changelog & Release Notes

https://rankmath.com/changelog/

Vendor Advisories for CVE-2026-111862(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 21× in last 7d / 48× 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.

  1. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-11-02 03:22 UTCEG score recompute
  3. 2026-11-02 03:22 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-11-01 02:42 UTCEG score recompute
  6. 2026-11-01 02:42 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-10-31 02:01 UTCEG score recompute
  9. 2026-10-31 02:01 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-10-30 01:21 UTCEG score recompute
  12. 2026-10-30 01:21 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  14. 2026-10-29 00:41 UTCEG score recompute
  15. 2026-10-29 00:41 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-10-28 00:00 UTCEG score recompute
  18. 2026-10-28 00:00 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-10-26 23:18 UTCEG score recompute
  21. 2026-10-26 23:18 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-10-25 19:12 UTCEG score recompute
  24. 2026-10-25 19:12 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
Show 23 more
  1. 2026-10-25 14:52 UTCEG score recompute
  2. 2026-10-24 18:15 UTCEG score recompute
  3. 2026-10-24 18:15 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  5. 2026-10-23 17:35 UTCEG score recompute
  6. 2026-10-23 17:35 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  8. 2026-10-22 16:54 UTCEG score recompute
  9. 2026-10-22 16:54 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  12. 2026-10-21 16:10 UTCEG score recompute
  13. 2026-10-21 16:10 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  15. 2026-10-20 15:26 UTCEG score recompute
  16. 2026-10-20 15:26 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-20 14:23 UTCEG score recompute
  18. 2026-10-20 14:22 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-19 20:47 UTCEG score recompute
  20. 2026-10-19 20:47 UTCGHSA enrichmentGHSA-6qfj-hq55-w68p · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-19 17:29 UTCEG score recompute
  22. 2026-10-19 16:48 UTCEG score recomputeFirst assessed: 9.8 CRITICAL
  23. 2026-10-19 16:47 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-111862?
CVE-2026-111862 is a critical-severity vulnerability; its CVE record was published on October 19, 2026. Rank Math SEO PRO for WordPress is affected by a supply-chain compromise in a subset of version 3.0.123 packages downloaded or updated between October 15, 2026 at 20:02 UTC and October 16, 2026 at 07:12 UTC. Rank Math states that the affected plugin files contained malware that could compromise a…
When was the CVE record for CVE-2026-111862 published?
The CVE record for CVE-2026-111862 was published on October 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 20, 2026; the record at its source may have been updated since.
Is CVE-2026-111862 actively exploited?
CVE-2026-111862 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-111862?
CVE-2026-111862 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-111862?
No fix for CVE-2026-111862 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-111862 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-111862

Explore →

Is Your Infrastructure Affected by CVE-2026-111862?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.