CVE-2026-8494 Permalink Manager Lite <= 2.5.3.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Title
Authenticated contributors can inject scripts via post titles that execute in the admin interface, potentially compromising administrator accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8494?
CVE-2026-8494 is a medium-severity cross-site scripting vulnerability in mbis Permalink Manager Lite, published on 17 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Permalink Manager Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post titles in the admin URI Editor interface in all versions up to, and including, 2.5.3.3 due to insufficient output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in the admin Permalink Manager page that will execute whenever an administrator accesses the Permalink Manager page.
Weakness: CWE-79
Which versions are affected by CVE-2026-8494?
How do I fix CVE-2026-8494?
No fix has been published for CVE-2026-8494 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-2026-8494 being exploited?
There is no known exploitation of CVE-2026-8494 in the wild and no public exploit code.
Sources
Also known as GHSA-7878-85c6-rxq7.