CVE-2026-73329 CamaleonCMS Stored XSS via Draft Post Title Creation Endpoint
Authenticated low-privileged users can execute arbitrary JavaScript in administrator browsers via unsanitized draft post titles, leading to session compromise.
- 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-2026-73329?
CVE-2026-73329 is a critical cross-site scripting vulnerability in owen2345 CamaleonCMS, published on 12 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
CamaleonCMS contains a stored cross-site scripting vulnerability that allows authenticated low-privileged users to execute arbitrary JavaScript in an administrator's browser by injecting unsanitized HTML payloads into the post title parameter during draft creation. Attackers can submit a malicious HTML payload as a draft title through the drafts creation endpoint, which is persisted to the database without escaping and later rendered as raw HTML in the admin drafts listing, enabling administrator session compromise, cookie theft, and forged authenticated requests.
Weakness: CWE-79
Which versions are affected by CVE-2026-73329?
How do I fix CVE-2026-73329?
No fix has been published for CVE-2026-73329 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-2026-73329 being exploited?
There is no known exploitation of CVE-2026-73329 in the wild and no public exploit code.
Sources
Also known as GHSA-mf3v-84v4-vjjc.