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CVE-2026-3423— Envira Gallery <= 1.12.4 - Authenticated (Author+) Stored Cross-Site Scripting via Gallery Description

Quick assessment

Affected
smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More是smub公司的一款CMS插件。 smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More 1.12.4及之前版本存在跨站脚本漏洞，该漏洞源于通过gallery的 "description" 配置字段时输入清理和输出转义不足，可能导致

CVSS 6.4 · Medium EPSS 0.33% · P25

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More ≤ 1.12.4 affected
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I. Basic Information for CVE-2026-3423

Vulnerability Information
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Vulnerability Title
Envira Gallery <= 1.12.4 - Authenticated (Author+) Stored Cross-Site Scripting via Gallery Description
Source: CVE Program / CVE List V5
Vulnerability Description
The Envira Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the gallery 'description' configuration field in all versions up to, and including, 1.12.4 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 a page displaying the gallery with a description enabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More是smub公司的一款CMS插件。 smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More 1.12.4及之前版本存在跨站脚本漏洞，该漏洞源于通过gallery的 "description" 配置字段时输入清理和输出转义不足，可能导致
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
smub Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More 0 ~ 1.12.4 -

II. Public POCs for CVE-2026-3423

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III. Intelligence Information for CVE-2026-3423

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Security Blog Posts for CVE-2026-3423 (1)

Vendor Pages for CVE-2026-3423 (1)

Other References for CVE-2026-3423 (1)

IV. Related Vulnerabilities

Same product: Envira Gallery – Image Photo Gallery, Albums, Video Gallery, Slideshows & More
Same vendor: smub
Same weakness: CWE-79