CVE-2026-28187 Cross-site scripting in Knowledge Base for Documentation, FAQs with AI Assistance
Unauthenticated attackers can inject malicious scripts into the Knowledge Base plugin, potentially compromising user sessions or site integrity.
- 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-2026-28187?
CVE-2026-28187 is a high-severity cross-site scripting vulnerability in echoplugins Knowledge Base for Documentation, FAQs with AI Assistance, published on 13 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
Unauthenticated Cross Site Scripting (XSS) in Knowledge Base for Documentation, FAQs with AI Assistance <= 17.211.0 versions.
Weakness: CWE-79
Which versions are affected by CVE-2026-28187?
How do I fix CVE-2026-28187?
No fix has been published for CVE-2026-28187 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-2026-28187 being exploited?
There is no known exploitation of CVE-2026-28187 in the wild and no public exploit code.
Sources
Also known as GHSA-55x8-6vf8-2m59.