Y2
Public vulnerability disclosure

CVE-2026-116563

CVE-2026-116563

publishedCWE-79

The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the site to have Shutter or Shutter Reloaded selected as the active lightbox, and the injected comment must be approved through WordPress's standard moderation workflow before the payload is rendered to other visitors.

Investigate in Cyber JSONMarkdown
Technical severity5.4 mediumCVSS 3.1 · NVD: [email protected]
Published2026-10-31Source updated 2026-11-01
Collected2026-11-021 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

No affected-product ranges reported in collected sources.

CVSS assessments

Version / scoreVectorAuthority
3.1 / 5.4
medium		 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:NNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References