Video Gallery <= 4.0.3 - Authenticated (Subscriber+) Arbitrary Function Call via 'path' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-98.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| emarket-design | Video Gallery – YouTube Gallery, Playlist & Video Grid | up to 4.0.3 | — | No fix listed | CNA |
- Video Gallery – YouTube Gallery, Playlist & Video Grid Vendoremarket-design Affected up to 4.0.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12923
- 2026-10-03 Alias added: GHSA-wpqv-235c-6c75
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/be4743d5-e4ca-4579-84e2-5eb3ef0e274d?source=cve
- https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.3/includes/common-functions.php#L1070
- https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.3/includes/common-functions.php#L1067
- https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.3/includes/class-install-deactivate.php#L53
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3588198%40youtube-showcase&new=3588198%40youtube-showcase&sfp_email=&sfph_mail=
More emarket-design vulnerabilities
- TI-2024-05779 Request a Quote < 2.4.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 5.9
- TI-2026-12634 Customer Support Ticket System & Helpdesk <= 6.0.5 - Unauthenticated Code Injection via 'path' Parameter CVSS 3.1CRITICAL 9.8
- TI-2026-08619 WP Ticket <= 6.0.4 - Unauthenticated SQL Injection via WordPress Search 's' Parameter CVSS 3.1HIGH 7.5
- TI-2022-02068 Request a Quote <= 2.3.7 - CSV Injection CVSS 3.1HIGH 8.8
- TI-2026-12066 Request a Quote Form Plugin <= 2.5.5 - Unauthenticated Code Injection via 'path' Parameter CVSS 3.1HIGH 7.5
- TI-2025-07706 Multiple Plugins by emarket-design <= Multiple Versions - Unauthenticated Limited Remote Code Execution CVSS 3.1HIGH 8.1
Sources
- CVE-2026-12923 · CVE Program
- CVE-2026-12923 · NVD
- FIRST EPSS
- GHSA-wpqv-235c-6c75 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences