CVE-2026-1236: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
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.
AI Analysis
Technical Summary
CVE-2026-1236 is a stored cross-site scripting vulnerability in the Envira Gallery WordPress plugin (up to version 1.12.3). It involves improper neutralization of input during web page generation (CWE-79) specifically through the 'justified_gallery_theme' parameter. Authenticated attackers with Author-level privileges or higher can inject arbitrary web scripts that execute in the context of other users viewing the injected pages. This vulnerability can lead to limited confidentiality and integrity impacts but does not affect availability. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with Author-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users viewing the affected pages. This can lead to partial confidentiality and integrity compromise, such as session hijacking or content manipulation. There is no impact on system availability. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access to trusted users only and consider disabling or limiting use of the 'justified_gallery_theme' parameter if possible. Monitor for updates from the plugin vendor regarding patches or mitigations.
CVE-2026-1236: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1236 is a stored cross-site scripting vulnerability in the Envira Gallery WordPress plugin (up to version 1.12.3). It involves improper neutralization of input during web page generation (CWE-79) specifically through the 'justified_gallery_theme' parameter. Authenticated attackers with Author-level privileges or higher can inject arbitrary web scripts that execute in the context of other users viewing the injected pages. This vulnerability can lead to limited confidentiality and integrity impacts but does not affect availability. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with Author-level access or higher can exploit this vulnerability to inject malicious scripts that execute in the browsers of users viewing the affected pages. This can lead to partial confidentiality and integrity compromise, such as session hijacking or content manipulation. There is no impact on system availability. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access to trusted users only and consider disabling or limiting use of the 'justified_gallery_theme' parameter if possible. Monitor for updates from the plugin vendor regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-20T16:37:15.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69a7ee50d1a09e29cb1a949b
Added to database: 3/4/2026, 8:33:20 AM
Last enriched: 4/9/2026, 11:14:54 AM
Last updated: 4/17/2026, 11:04:35 PM
Views: 44
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