The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Stored
Source GCVE Database
Not known to be exploited · CVSS 5.4 Medium.
Data as of 31 Oct 2026, 07:08 UTC
Thin evidence
One scorer or none| CNA (Wordfence) | CVSS 3.1 | 5.4 |
|---|
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| smubPhoto Gallery, Sliders, Proofing and Themes – NextGEN Gallery | Affected
| Fixed in– |
AI-suggested
Users should verify if a patch or update beyond version 4.5.4 is available from the plugin vendor. Until a fix is applied, administrators should consider disabling the Shutter or Shutter Reloaded lightbox options or restrict comment approvals to trusted users to reduce risk. Monitor the vendor advisory for updates and apply official patches once released.
Description
The NextGEN Gallery WordPress plugin (versions up to and including 4.5.4) contains a stored DOM-based cross-site scripting (XSS) vulnerability via the 'comment' parameter. This vulnerability arises from insufficient input sanitization and output escaping, allowing unauthenticated attackers to inject malicious scripts. Exploitation requires the site to use the Shutter or Shutter Reloaded lightbox and for the injected comment to be approved through WordPress's moderation system before the payload executes for other users.
References
- nvd.nist.gov/vuln/detail/CVE-2026-116563 (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/nextgen_shutter.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/shutter.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/shutter.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/nextgen_shutter_reloaded.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/shutter.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/shutter.js (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3773860/nextgen-gallery/trunk/static/Lightbox/shutter/shutter.js (opens in a new tab)
- wordfence.com/threat-intel/vulnerabilities/id/18dc9c01-c849-40c3-87ec-5eebc9660aff?source=cve (opens in a new tab)