SEPTEMBER 14, 2026
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Case File

CVE-2026-88871

MEDIUM · CVSS 4.3 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-10 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

The CustomizeUser plugin in WWBN AVideo is vulnerable to cross-site request forgery (CSRF) due to improper validation of requests at the setSubscribers.json.php endpoint. This flaw allows an unauthenticated attacker to manipulate the ExtraSubscribers count for any user by tricking a logged-in administrator into loading a malicious page. Organizations using this plugin, especially those with administrative access exposed, should prioritize patching or mitigating this vulnerability to prevent potential abuse.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-88871
Severity
MEDIUM
CVSS
4.3
EPSS
0.14%

Original NVD Description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 (master, 2026-08-23) contains a cross-site request forgery vulnerability in the CustomizeUser plugin's plugin/CustomizeUser/setSubscribers.json.php endpoint. The script reads users_id and ExtraSubscribers from $_REQUEST and calls User::setExtraSubscribers() without requiring a POST request or a valid CSRF token; autoCSRFGuard() is applied only to POST requests to *.json.php, and the mutation does not pass through ObjectYPT::save()/isUntrustedRequest(), so a cross-origin GET succeeds. An unauthenticated remote attacker who induces a logged-in administrator to load a crafted page (for example an <img> tag pointing at the endpoint) can forge the ExtraSubscribers count displayed on any user's channel. The CustomizeUser plugin is enabled by default, and no patched version was available at the time of reporting.