PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-34394 WWBN CVE debrief

AVideo, an open-source video platform, is vulnerable to a high-severity CSRF attack. The admin plugin configuration endpoint (admin/save.json.php) lacks CSRF token validation, allowing attackers to forge cross-origin POST requests and overwrite plugin settings on a victim administrator's session. This can lead to a complete takeover of platform functionality by reconfiguring payment processors, authentication providers, and cloud storage credentials. The vulnerability exists in AVideo versions 26.0 and prior.

Vendor
WWBN
Product
AVideo
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-03-31
Original CVE updated
2026-07-24
Advisory published
2026-03-31
Advisory updated
2026-07-24

Who should care

Administrators and users of AVideo, especially those with administrative privileges, should be aware of this vulnerability and take immediate action to mitigate the risk. Affected operators should review the official advisory and CVE record to validate affected scope and severity. Vulnerability management and security teams should prioritize patching or mitigating this vulnerability to prevent potential exploitation.

Technical summary

The vulnerability exists in AVideo versions 26.0 and prior. The admin plugin configuration endpoint does not validate CSRF tokens, and the application's SameSite=None cookie policy allows attackers to forge cross-origin POST requests. This can lead to a complete takeover of platform functionality by reconfiguring payment processors, authentication providers, and cloud storage credentials. The plugins table is included in the ignoreTableSecurityCheck() array in objects/Object.php, bypassing standard table-level access controls.

Defensive priority

High

Recommended defensive actions

  • Update AVideo to a version that includes a patch for this vulnerability
  • Implement CSRF token validation for the admin plugin configuration endpoint
  • Restrict access to the admin plugin configuration endpoint
  • Monitor for suspicious activity on the AVideo platform
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-03-31T21:16:30.660Z and last modified on 2026-07-24T20:10:00.147Z. The NVD entry is currently Analyzed. There is limited information available about the vulnerability beyond the official CVE and NVD records. Defenders should verify the affected scope and severity with the vendor and review the official advisory for mitigation guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-34394 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-34394

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-34394 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34394

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.