Cyber Resilience

CVE-2025-26153

Medium

Published: 16 April 2025

Published
16 April 2025
Modified
15 April 2026
KEV Added
Patch
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0033 56.2th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26153 is a medium-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 43.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References