CVE-2026-1236
Envira Gallery for WordPress <= 1.12.3 - Authenticated (Author+) Stored Cross-Site Scripting via 'justified_gallery_theme' Parameter via REST API
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The Envira Gallery for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'justified_gallery_theme' parameter in all versions up to, and including, 1.12.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | smub |
| Product | envira gallery – image photo gallery, albums, video gallery, slideshows & more |
| Published | Mar 4, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
smub / Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
0 ≤ 1.12.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/bc552d46-79ca-4540-8620-5a031238cd62?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/envira-gallery-lite/trunk/includes/global/shortcode.php#L302 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/envira-gallery-lite/tags/1.12.3/includes/global/shortcode.php#L302 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3465371%40envira-gallery-lite&old=3444965%40envira-gallery-lite&sfp_email=&sfph_mail=
Credits
Athiwat Tiprasaharn Itthidej Aramsri Waris Damkham