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Vulnerabilities

Vulnerability · CVE-2026-40909

WWBN AVideo is an open source video platform.

Published Apr 21, 2026 · catalog updated Jun 17, 2026 · WWBN AVideo is an

Check if you run it

No confirmed exploitation is on record for CVE-2026-40909. EPSS is 0.82%. Act only if a listed version of WWBN AVideo is an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (WWBN AVideo is an).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.82%
Remediation
Advisory link
Affected products
cpe wwbn/avideo

WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint ( ) constructs a file path by directly concatenating into the path at line 30 without any sanitization. The parameter is then written verbatim to that path via at line 40. An admin attacker (or any user who can CSRF an admin, since no CSRF token is checked and cookies use ) can traverse out of the directory and write arbitrary files to any writable location on the filesystem, achieving Remote Code Execution. Commit 57f89ffbc27d37c9d9dd727212334846e78ac21a fixes the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe wwbn/avideoversion unspecified

How to fix CVE-2026-40909

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-40909. EPSS is 0.82%. Act only if a listed version of WWBN AVideo is an is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.82%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 21, 2026 · NIST NVD

    Detected

    WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint ( ) constructs a file path by directly concatenating into the path at line 30 without any sanitization. The parameter is then written verbatim to that path via at line 40. An admin attacker (or any user who can CSRF an admin, since no CSRF token is checked and cookies use ) can traverse out of the di

  2. Jun 17, 2026 · NIST NVD

    Updated

    WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint ( ) constructs a file path by directly concatenating into the path at line 30 without any sanitization. The parameter is then written verbatim to that path via at line 40. An admin attacker (or any user who can CSRF an admin, since no CSRF token is checked and cookies use ) can traverse out of the di

Sources

  • CVE.orgVulnerability recordCVE-2026-40909

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-40909

    30-day exploitation probability 0.8%

    first.org
  • NIST NVDVulnerability recordCVE-2026-40909

    WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint ( ) constructs a file path by directly concatenating into the path at line 30 without any sanitization. The parameter is then writt

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.