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  4. CVE 2026 116563 photo gallery sliders proofing and themes 454
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Back to active CVEs
Medium · CVSS 5.4CVE-2026-116563

Photo Gallery, Sliders, Proofing and Themes <= 4.5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment `title` Attribute via Shutter Lightbox innerHTMLCVE-2026-116563

Answer in brief

CVE-2026-116563 records a Medium severity (CVSS 5.4) vulnerability in Photo Gallery, Sliders, Proofing and Themes <= 4.5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment `title` Attribute via Shutter Lightbox innerHTML. The current sources do not mark it as known exploited. The current feed maps smub/Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 31, 2026Updated Oct 31, 2026Source checked Oct 31, 2026First seen by HOL Oct 31, 2026Material review Oct 31, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.4
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps smub/Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
smub/Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallerygeneric>=0 <=4.5.4Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for smub/Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 31, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 31, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 31, 2026

Sources and claim methodology

  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referencewordfence.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Meow Lightbox <= 5.6.4 - Unauthenticated Stored Cross-Site Scripting via HTML Parser Quote-Metadata DesynchronizationAlso CWE-79
  • Ninja Forms <= 3.15.5 - Unauthenticated Stored Cross-Site Scripting via 'extra' Parameter via Metadata Key NormalizationAlso CWE-79
  • PPWP <= 1.9.26 - Unauthenticated Stored Cross-Site Scripting via '[ppwp]' Shortcode 'desc_below_form' Attribute via Placeholder Marker CollisionAlso CWE-79
  • Firelight Lightbox < 2.3.24 - Contributor+ Stored XSS via Image 'src' AttributeAlso CWE-79
  • AdminNeo Vulnerable to XSS via Rogue MySQL Server Version String (CSP Nonce Bypass)Also CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 31, 2026
References
8 linked sources
Open source record