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Vulnerabilities

Vulnerability · CVE-2025-26153

A Stored XSS vulnerability exists in the message compose feature of Chamilo LMS 1.11.28.

Published Apr 16, 2025 · catalog updated Apr 18, 2025 · A Stored XSS vulnerability

Check this week

CVE-2025-26153 is not in CISA KEV. FIRST estimates a 35.00% chance of exploitation in the next 30 days. Check whether you run A Stored XSS vulnerability.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A Stored XSS vulnerability).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
35.00%
Remediation
Vendor / distro source
Affected products
vendor n/a n/a n/a

A Stored XSS vulnerability exists in the message compose feature of Chamilo LMS 1.11.28. Attackers can inject malicious scripts into messages, which execute when victims, such as administrators, reply to the message.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a n/a n/an/a

How to fix CVE-2025-26153

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-26153 is not in CISA KEV. FIRST estimates a 35.00% chance of exploitation in the next 30 days. Check whether you run A Stored XSS vulnerability.

Which versions are affected?

Compare what you have installed with n/a n/a n/a n/a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 35.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 16, 2025 · EUVD

    Detected

    A Stored XSS vulnerability exists in the message compose feature of Chamilo LMS 1.11.28. Attackers can inject malicious scripts into messages, which execute when victims, such as administrators, reply to the message.

  2. Apr 18, 2025 · EUVD

    Updated

    A Stored XSS vulnerability exists in the message compose feature of Chamilo LMS 1.11.28. Attackers can inject malicious scripts into messages, which execute when victims, such as administrators, reply to the message.

Sources

  • CVE.orgVulnerability recordCVE-2025-26153

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-11540

    A Stored XSS vulnerability exists in the message compose feature of Chamilo LMS 1.11.28. Attackers can inject malicious scripts into messages, which execute when victims, such as administrators, reply to the message.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.