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CVE

CVE-2026-39878

Chamilo stored XSS via user registration leads to admin account takeover
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CVE

CVE-2026-39878

Chamilo stored XSS via user registration leads to admin account takeover

Chamilo LMS versions 1.11.38 and earlier contain a stored cross-site scripting vulnerability in the user registration form that allows any unauthenticated attacker to execute arbitrary JavaScript in an administrator's browser session, leading to full platform admin account takeover. This has been patched in 1.11.40.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://vokecyber.com/research/cve-2026-39878-chamilo-lms-stored-xss, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39878.json, https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-gcjp-f7jm-rrrg, https://nvd.nist.gov/vuln/detail/CVE-2026-39878

Severity

9.3

CVSS Score
0
10

Basic Information

Base CVSS
9.3
EPSS Probability
0.00435%
EPSS Percentile
0.36379%
Introduced Version
0
Fix Available

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