CVE-2026-109936 Otter Blocks < 3.2.8 - Unauthenticated Stored XSS via Dynamic Content Render Filter
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-109936?
CVE-2026-109936 is a high-severity vulnerability in Unknown Otter Blocks, published on 23 Oct 2026.
Official description
The Otter Blocks WordPress plugin before 3.2.8 does not correctly bound a pattern it uses to rewrite its dynamic-content tokens while rendering blocks, so the pattern can consume the quote that closes an HTML attribute and pull adjacent unescaped data into the markup as new attributes. This allows unauthenticated users to achieve stored Cross-Site Scripting that executes in the browser of any visitor who views an affected page, including a logged-in administrator.
Weakness: CWE-79
Which versions are affected by CVE-2026-109936?
How do I fix CVE-2026-109936?
No fix has been published for CVE-2026-109936 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109936 being exploited?
There is no known exploitation of CVE-2026-109936 in the wild and no public exploit code.
Sources
Also known as GHSA-7hjg-79p8-hrjm.