CVE-2026-15386

Meow Gallery < 5.5.2 - Author+ Stored XSS via Attachment Alt-Text

Published Aug 7, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
The Meow Gallery WordPress plugin before 5.5.2 does not escape an attachment's alt text before outputting it into an attribute of the link it builds for linked galleries, allowing users with the Author role or above to store a JavaScript payload that executes in the browser of any visitor (including administrators) who views a post containing such a gallery.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions meow Gallery
Vendors & Products Wordpress-extensions
Wordpress-extensions meow Gallery
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-79
Type Values Removed Values Added
Description The Meow Gallery WordPress plugin before 5.5.2 does not escape an attachment's alt text before outputting it into an attribute of the link it builds for linked galleries, allowing users with the Author role or above to store a JavaScript payload that executes in the browser of any visitor (including administrators) who views a post containing such a gallery.
Title Meow Gallery < 5.5.2 - Author+ Stored XSS via Attachment Alt-Text
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 7, 2026, 6:09 PM
Reserved
Jul 10, 2026, 9:46 AM
Status
Deferred
Published
Aug 7, 2026, 6:16 AM
Modified
Aug 26, 2026, 4:31 PM