CVE-2026-86311 Cross-site scripting in Photo Gallery by 10Web – Mobile-Friendly Image Gallery
Authenticated attackers can inject arbitrary scripts via shortcode attributes, leading to code execution when users view affected 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-2026-86311?
CVE-2026-86311 is a medium-severity cross-site scripting vulnerability in Photo Gallery by 10Web – Mobile-Friendly Image Gallery, published on 17 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Photo Gallery by 10Web – Mobile-Friendly Image Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Shortcode Attributes in all versions up to, and including, 1.8.44 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-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-2026-86311?
How do I fix CVE-2026-86311?
No fix has been published for CVE-2026-86311 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-2026-86311 being exploited?
There is no known exploitation of CVE-2026-86311 in the wild and no public exploit code.
Sources
Also known as GHSA-rvr9-fc88-q89v.