CVE-2026-96531 Optimole 4.0.0 - 4.2.12 - Author+ Stored XSS via Video Player Block
Authors can inject malicious scripts via video player attributes, leading to code execution in administrators' browsers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-96531?
CVE-2026-96531 is a medium-severity cross-site scripting vulnerability in Unknown Optimole, published on 26 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Optimole WordPress plugin before 4.2.13 does not escape unrecognized attributes of its video-player block before rendering them onto the block's wrapper element, allowing users with the Author role and above to store an event-handler attribute that executes scripts in the browser of any user, such as an administrator, who views the post.
Weakness: CWE-79
Which versions are affected by CVE-2026-96531?
How do I fix CVE-2026-96531?
No fix has been published for CVE-2026-96531 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-2026-96531 being exploited?
There is no known exploitation of CVE-2026-96531 in the wild and no public exploit code.
Sources
Also known as GHSA-m59v-2jwx-hmp2.