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VulnerabilityPublished

CVE-2026-40911: WWBN AVideo · Code Injection

Affects WWBN AVideoSource CVE Database V5

0
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Not known to be exploited · CVSS 10.0 Critical.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
10.0Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 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 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
WWBNAVideoAffected
  • <=29.0
Fixed in–
GitHubwwbn/AVideopkg:github/wwbn/AVideoOther threatsAffected
  • <=29.0
Fixed in–

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

AI-suggested

A fix for this vulnerability is available in commit c08694bf6264eb4decceb78c711baee2609b4efd. Users of WWBN AVideo should update to a version that includes this fix. Since the vendor advisory or patch links are not explicitly provided, confirm the application of this commit or an official patch from WWBN before deployment. Until patched, restrict access to the WebSocket service and consider disabling the YPTSocket plugin if feasible.

Description

CVE-2026-40911 is a critical code injection vulnerability in WWBN AVideo versions 29.0 and earlier. The YPTSocket plugin's WebSocket server relays attacker-controlled JSON message fields without sanitization, which are then passed to eval() calls on connected clients. This allows an unauthenticated attacker to execute arbitrary JavaScript in the context of all connected users, including administrators. The vulnerability enables universal account takeover, session theft, and execution of privileged actions. A fix is available in commit c08694bf6264eb4decceb78c711baee2609b4efd.

References

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