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VulnerabilityPublished

CVE-2026-33507: WWBN AVideo · Cross-Site Request Forgery (CSRF)

Affects WWBN AVideoSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
WWBNAVideoAffected
  • <=26.0
Fixed in–
GitHubwwbn/AVideopkg:github/wwbn/AVideoOther threatsAffected
  • <=26.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Immediately update WWBN AVideo to the latest patched version that includes the fix for CVE-2026-33507.
  2. If patching is not immediately possible, implement web application firewall (WAF) rules to detect and block unauthorized POST requests to the `pluginImport.json.php` endpoint.
  3. Restrict administrative access to trusted networks or VPNs to reduce exposure to phishing attacks.
  4. Educate administrators about the risks of visiting untrusted websites while logged into admin accounts.
  5. Review and harden session cookie settings, considering setting `SameSite` to `Lax` or `Strict` where feasible to prevent cross-site requests.
  6. Monitor server logs for unusual plugin uploads or webshell activity.
  7. Employ multi-factor authentication (MFA) for admin accounts to reduce risk from compromised credentials.
  8. Conduct regular security audits and penetration testing focusing on admin interfaces and plugin management functionalities.

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `objects/pluginImport.json.php` endpoint allows admin users to upload and install plugin ZIP files containing executable PHP code, but lacks any CSRF protection. Combined with the application explicitly setting `session.cookie_samesite = 'None'` for HTTPS connections, an unauthenticated attacker can craft a page that, when visited by an authenticated admin, silently uploads a malicious plugin containing a PHP webshell, achieving Remote Code Execution on the server. Commit d1bc1695edd9ad4468a48cea0df6cd943a2635f3 contains a patch.

References

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