CVE-2025-26153 Cross-site scripting in n/a
Attackers can inject malicious scripts into Chamilo LMS messages, executing them when administrators reply, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-26153?
CVE-2025-26153 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2025-26153?
How do I fix CVE-2025-26153?
No fix has been published for CVE-2025-26153 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-26153 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-26153 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-v38h-c3ff-rmhw.