What is CVE-2025-26153?

CVE-2025-26153 is a medium-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-04-16.

How severe is CVE-2025-26153?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2025-26153 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in N/a

CVE-2025-26153

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (25.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

mexeck88/CSRF-via-stored-XSS-for-PrivEsc

References

Frequently asked questions

What is CVE-2025-26153?: CVE-2025-26153 is a medium-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-04-16.
How severe is CVE-2025-26153?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-26153 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.