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CVE-2026-12923— Video Gallery <= 4.0.3 - Authenticated (Subscriber+) Arbitrary Function Call via 'path' Parameter

Quick assessment

Affected
emarket-design Video Gallery – YouTube Gallery, Playlist & Video Grid
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.

emarket-design Video Gallery是美国emarket-design公司的一款展示YouTube视频和图库的网格组件。 emarket-design Video Gallery 4.0.3及之前版本存在代码注入漏洞，该漏洞源于对includes/common-functions.php中emd_delete_file() AJAX处理器的'path'参数验证不足，可能导致认证攻击者（Subscriber级别及以上）调用任意零参数PHP函数，从而导致敏感信息泄露。

CVSS 7.5 · High EPSS 0.52% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
emarket-design Video Gallery – YouTube Gallery, Playlist & Video Grid ≤ 4.0.3 affected
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I. Basic Information for CVE-2026-12923

Vulnerability Information
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Vulnerability Title
Video Gallery <= 4.0.3 - Authenticated (Subscriber+) Arbitrary Function Call via 'path' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Youtube Showcase plugin for WordPress is vulnerable to Arbitrary Function Call in versions up to and including 4.0.3. This is due to insufficient validation of the 'path' parameter in the emd_delete_file() AJAX handler in includes/common-functions.php. The user-supplied value is passed through sanitize_text_field(), has its trailing '_PLUGIN_DIR' substring stripped, and is then invoked as a PHP function name with no arguments via `$sess_name()`. The handler is gated only by a nonce — no current_user_can() check is present — and the nonce is emitted on any front-end page that renders a form shortcode containing file fields. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke arbitrary zero-argument PHP functions (such as phpinfo, phpversion, get_defined_vars, error_get_last), resulting in sensitive information disclosure and potential further compromise depending on the functions available in the environment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
PHP程序中Include/Require语句包含文件控制不恰当(PHP远程文件包含)
Source: CVE Program / CVE List V5
Vulnerability Title
emarket-design Video Gallery 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
emarket-design Video Gallery是美国emarket-design公司的一款展示YouTube视频和图库的网格组件。 emarket-design Video Gallery 4.0.3及之前版本存在代码注入漏洞，该漏洞源于对includes/common-functions.php中emd_delete_file() AJAX处理器的'path'参数验证不足，可能导致认证攻击者（Subscriber级别及以上）调用任意零参数PHP函数，从而导致敏感信息泄露。
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
emarket-design Video Gallery – YouTube Gallery, Playlist & Video Grid 0 ~ 4.0.3 -

II. Public POCs for CVE-2026-12923

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III. Intelligence Information for CVE-2026-12923

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Patches & Fixes for CVE-2026-12923 (1)

Vendor Advisories for CVE-2026-12923 (1)

IV. Related Vulnerabilities

Same product: Video Gallery – YouTube Gallery, Playlist & Video Grid
Same vendor: emarket-design
Same weakness: CWE-98

V. Comments for CVE-2026-12923

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