CVE-2025-12650 Simple post listing <= 0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Authenticated contributors can inject arbitrary scripts via the postlist shortcode, leading to stored XSS execution on victim pages.
- 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-2025-12650?
CVE-2025-12650 is a medium-severity cross-site scripting vulnerability in sgcoskey Simple post listing, published on 12 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Simple post listing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class_name' parameter in the postlist shortcode in all versions up to, and including, 0.2. This is due to insufficient input sanitization and output escaping on user-supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via mouse interaction.
Weakness: CWE-79
Which versions are affected by CVE-2025-12650?
How do I fix CVE-2025-12650?
No fix has been published for CVE-2025-12650 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-2025-12650 being exploited?
There is no known exploitation of CVE-2025-12650 in the wild and no public exploit code.
Sources
Also known as GHSA-fcfm-5w92-52w9.