Photo Gallery, Sliders, Proofing and Themes <= 4.5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment `title` Attribute via Shutter Lightbox innerHTML
Summary
| CVE | CVE-2026-116563 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-31 06:16:32 UTC |
| Updated | 2026-10-31 06:16:32 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 5.4 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.4 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 5.4 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Smub | Photo Gallery Sliders Proofing And Themes NextGEN Gallery | affected 4.5.4 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/sh... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_re... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/ne... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/sh... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset/3773860/nextgen-gallery/trunk/static/Lightbox/shutt... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/18dc9c01-c849-40c3-87ec-5eebc... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_re... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_re... | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: UKO (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-26T15:11:53.000Z | Vendor Notified |
| CNA | 2026-10-30T17:16:16.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.