CVE-2026-36761 Cross-site scripting in n/a
Attackers can execute arbitrary scripts in JeeSite via stored XSS in the message content parameter, 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-2026-36761?
CVE-2026-36761 is a medium-severity cross-site scripting vulnerability in n/a, published on 30 Apr 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
A stored cross-site scripting (XSS) vulnerability in the /msg/msgInner/save endpoint of JeeSite v5.15.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted input into the msgContent parameter.
Weakness: CWE-79
Which versions are affected by CVE-2026-36761?
How do I fix CVE-2026-36761?
No fix has been published for CVE-2026-36761 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-2026-36761 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36761 exists.
Sources
Also known as GHSA-v5cr-c793-7mvp.