Envira Gallery for WordPress <= 1.12.3 - Authenticated (Author+) Stored Cross-Site Scripting via 'justified_gallery_theme' Parameter via REST API

2026-03-03 20:19

Athiwat Tiprasaharn (Jitlada)

Strategic Overview

Status

Patched in 1.12.4

Affected PluginEnvira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More

Affected Version<= 1.12.3

CVSS6.4Medium

CVECVE-2026-1236

View all Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 1.12.4, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2026-1236 https://www.wordfence.com/threat-intel/vulnerabilities/id/bc552d46-79ca-4540-8620-5a031238cd62

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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