CVE-2026-63360 LimeSurvey Community Edition 7.0.5 - Reflected XSS in user activation confirmation endpoint
Authenticated attackers can execute arbitrary scripts via reflected XSS in the user activation endpoint, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-63360?
CVE-2026-63360 is a high-severity cross-site scripting vulnerability in LimeSurvey, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
LimeSurvey Community Edition 7.0.5+260623 contains an authenticated reflected Cross-Site Scripting vulnerability in the user activation confirmation endpoint. The action query parameter is copied into the response and inserted into a hidden input attribute without HTML attribute encoding.
This issue affects LimeSurvey: 7.0.5.
Weakness: CWE-79
Which versions are affected by CVE-2026-63360?
How do I fix CVE-2026-63360?
No fix has been published for CVE-2026-63360 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-2026-63360 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63360 exists.
Sources
Also known as GHSA-65x5-6vw6-2f55.