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CVE-2026-116563 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/nextgen_shutter.js#L120	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/nextgen_shutter_reloaded.js#L118	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/shutter.js#L247	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter_reloaded/shutter.js#L75	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/shutter.js#L197	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.5.4/static/Lightbox/shutter/shutter.js#L67	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset/3773860/nextgen-gallery/trunk/static/Lightbox/shutter/shutter.js	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/18dc9c01-c849-40c3-87ec-5eebc9660aff?source=cve	[email protected]	AdvisoryRemedy

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery	<= 4.5.4 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 4.5.5moderate effort Mitigation:low effort Disable the Shutter and Shutter Reloaded lightbox options.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 1, 2026	CVE Modified	CISA-ADP
Oct 31, 2026	New CVE Received	[email protected]