EUVD-2026-40897
GHSA-wpqv-235c-6c75
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Subscriber auth gives PR:L, restriction to zero-argument callables and environment dependence gives AC:H, and the primitive yields mainly disclosure so C:H with minimal I and no A impact.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Arbitrary zero-argument PHP function invocation in the Youtube Showcase (Video Gallery - YouTube Gallery, Playlist & Video Grid) plugin for WordPress affects all versions up to and including 4.0.3, letting authenticated Subscriber-level users abuse the emd_delete_file() AJAX handler to call any callable PHP function name with no arguments. Because the handler validates only a nonce and omits a current_user_can() capability check, low-privileged accounts can trigger functions such as phpinfo(), get_defined_vars(), or error_get_last() to disclose sensitive server and application data. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated WordPress account at Subscriber level or above (CVSS PR:L confirms authentication), plus access to a front-end page that renders a Youtube Showcase form shortcode containing file fields - that page emits the nonce needed to pass the handler's only gate. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are mixed. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | On a WordPress site that permits self-registration, an attacker registers a Subscriber account, browses to a front-end page containing a Youtube Showcase form shortcode to harvest the emitted nonce, then sends a crafted admin-ajax.php POST to the emd_delete_file action with a 'path' value resolving to a function like phpinfo or get_defined_vars. The server invokes that function and returns environment secrets (paths, configuration, loaded variables) that seed further attacks. … |
| Remediation | No explicit fixed version number is stated in the available data, but an upstream fix is available in the WordPress plugin repository via changeset 3588198 (https://plugins.trac.wordpress.org/changeset?reponame=youtube-showcase&old=3588198%40youtube-showcase&new=3588198%40youtube-showcase) - released patched version not independently confirmed, so upgrade to the latest available Youtube Showcase release above 4.0.3 and confirm the emd_delete_file() handler now enforces a capability check. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all WordPress installations using YouTube Showcase plugin and document affected versions, Subscriber-level users, and environments where this plugin is deployed. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not
(1) boardData102.php, (2) boardData103.php, (3) boardDataJP.php, (4) boardDataNA.php, and (5) boardDataWW.php in Netgear
ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Rated critical severity (C
Roundcube Webmail contains a critical PHP object deserialization vulnerability (CVE-2025-49113, CVSS 9.9) that allows au
Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP c
Palo Alto Networks PAN-OS management web interface contains an authentication bypass allowing unauthenticated attackers
Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows
The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
NetAlertX (formerly PiAlert) versions 23.01.14 through 24.x before 24.10.12 allow unauthenticated command injection thro
The GiveWP - Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all
Same weakness CWE-98 – PHP Remote File Inclusion
View allShare
External POC / Exploit Code
Leaving vuln.today