CVE-2018-25158

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-02-21. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

Chamilo LMS 1.11.8 contains an arbitrary file upload vulnerability that allows authenticated users to upload and execute PHP files through the elfinder filemanager module. Attackers can upload files with image headers in the social myfiles section, rename them to PHP extensions, and execute arbitrary code by accessing the uploaded files.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
30.1%
KEV
Not listed

Published

February 20, 2026

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated May 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Chamilo LMS 1.11.8 Arbitrary File Upload via elfinder | Advisories | VulnCheck

https://www.vulncheck.com/advisories/chamilo-lms-arbitrary-file-upload-via-elfinder
generic🟡 PoC Available

Chamillo LMS 1.11.8 - Arbitrary File Upload - PHP webapps Exploit

https://www.exploit-db.com/exploits/47423
generic

GitHub - chamilo/chamilo-lms: Chamilo is a learning management system focused on ease of use and accessibility · GitHub

https://github.com/chamilo/chamilo-lms

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 143 total refreshes for this CVE.

  1. 2026-07-23 01:35 UTCEG score recompute
  2. 2026-07-22 22:15 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  42. 2026-06-12 02:17 UTCGHSA enrichment
  43. 2026-06-11 13:57 UTCEPSS rescore
  44. 2026-06-10 22:16 UTCEPSS rescore
  45. 2026-06-10 21:29 UTCGHSA enrichment
  46. 2026-06-10 13:19 UTCEPSS rescore
  47. 2026-06-10 08:54 UTCGHSA enrichment
  48. 2026-06-09 18:35 UTCGHSA enrichment
  49. 2026-06-08 14:14 UTCEPSS rescore
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  51. 2026-06-08 05:21 UTCGHSA enrichment
  52. 2026-06-07 16:48 UTCGHSA enrichment
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  75. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2018-25158?
CVE-2018-25158 is a high vulnerability published on February 20, 2026. Chamilo LMS 1.11.8 contains an arbitrary file upload vulnerability that allows authenticated users to upload and execute PHP files through the elfinder filemanager module. Attackers can upload files with image headers in the social myfiles section, rename them to PHP extensions, and execute…
When was CVE-2018-25158 disclosed?
CVE-2018-25158 was first published in the National Vulnerability Database on February 20, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-25158 actively exploited?
CVE-2018-25158 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-25158?
CVE-2018-25158 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2018-25158?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-25158, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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