CVE-2025-52131 Cross-site scripting in Mocca Calendar
Attackers can inject malicious scripts via color fields in the Mocca Calendar plugin for XWiki, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-52131?
CVE-2025-52131 is a medium-severity cross-site scripting vulnerability in xwiki-contrib Mocca Calendar, published on 3 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Mocca Calendar application before 2.15 for XWiki allows XSS via the background or text color field.
Weakness: CWE-79
Which versions are affected by CVE-2025-52131?
How do I fix CVE-2025-52131?
No fix has been published for CVE-2025-52131 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-2025-52131 being exploited?
There is no known exploitation of CVE-2025-52131 in the wild and no public exploit code.
Sources
Also known as GHSA-jvq4-j2qw-q7x2.