Categories
CVE-2026-45140 critical CVSS 9.8

Path Traversal in chamilo/chamilo-lms (CVE-2026-45140)

Summary

Path traversal in chamilo/chamilo-lms (CVE-2026-45140). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 2.0.1 or later.

Original description

The description as published by the source.

Impact

Ability to run arbitrary code on the server without authentication.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A weakness called CVE-2026-45140 was discovered in chamilo/chamilo-lms.
In plain terms, it is a flaw that lets attackers reach files they should not see.
Severity is Critical (CVSS 9.8/10). If exploited, attackers can fully take over the affected system.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "chamilo/chamilo-lms CVE-2026-45140".

CVE-2026-45140 (chamilo/chamilo-lms). Severity: Critical / CVSSv3 9.8. Category: CWE-22.
Response plan:

  1. Check the vendor advisory for affected versions and the patched release.
  2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
  3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
  4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
    PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem

A weakness (CVE-2026-45140) in chamilo/chamilo-lms. In plain words, it is a flaw that lets attackers reach files they should not see.

📍 Affected scope

Target versions of chamilo/chamilo-lms (see vendor advisory). If running in production, identify exposure immediately.

🔥 Severity

Severity: Critical (CVSS 9.8/10). If exploited, attackers can fully take over the affected system.

🔧 How to fix

Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-22)

🛡️ Workaround

If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.

🔍 Detection

Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで影響コンポーネントを特定する。

  2. 2
    Post-deployment verification verify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

composer chamilo/chamilo-lms
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1"}]}]

References

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