CVE-2025-61931 Cross-site scripting in Pleasanter
Stored XSS in Pleasanter allows attackers to execute arbitrary scripts in logged-in users' browsers, potentially leading to session hijacking or data theft.
- 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-2025-61931?
CVE-2025-61931 is a medium-severity cross-site scripting vulnerability in Implem Inc. Pleasanter, published on 24 Oct 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
Pleasanter contains a stored cross-site scripting vulnerability in Body, Description and Comments, which allows an attacker to execute an arbitrary script in a logged-in user's web browser.
Weakness: CWE-79
Which versions are affected by CVE-2025-61931?
How do I fix CVE-2025-61931?
No fix has been published for CVE-2025-61931 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-2025-61931 being exploited?
There is no known exploitation of CVE-2025-61931 in the wild and no public exploit code.
Sources
Also known as GHSA-c6g6-rgwx-76pj.