CVE-2026-2602 Twentig <= 1.9.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'featuredImageSizeWidth'
Authenticated attackers with Contributor access can inject arbitrary scripts via the featuredImageSizeWidth parameter, leading to stored XSS.
- 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-2026-2602?
CVE-2026-2602 is a medium-severity cross-site scripting vulnerability in Twentig Supercharged Block Editor – Blocks, Patterns, Starter Sites, Portfolio, published on 29 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Twentig plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'featuredImageSizeWidth' parameter in versions up to, and including, 1.9.7 due to insufficient input sanitization and output escaping. 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-2602?
How do I fix CVE-2026-2602?
No fix has been published for CVE-2026-2602 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-2026-2602 being exploited?
There is no known exploitation of CVE-2026-2602 in the wild and no public exploit code.
Sources
Also known as GHSA-p2h8-5v2r-2vg8.