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TI-2026-26857 Aliases CVE-2026-34611GHSA-c4xj-x7p8-3x7q

AVideo: CSRF on emailAllUsers.json.php Enables Mass Phishing Email to All Users

Priority MEDIUM 62CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-352.

Summary

WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo endpoint objects/emailAllUsers.json.php allows administrators to send HTML emails to every registered user on the platform. While the endpoint verifies admin session status, it does not validate a CSRF token. Because AVideo sets SameSite=None on session cookies, a cross-origin POST request from an attacker-controlled page will include the admin's session cookie automatically. An attacker who lures an admin to a malicious page can send an arbitrary HTML email to every user on the platform, appearing to originate from the instance's legitimate SMTP address. At time of publication, there are no publicly available patches.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WWBNAVideoup to 26.0—No fix listedCNA
—wwbn/avideo (Packagist)up to 26.0—No fix listedGHSA-c4xj-x7p8-3x7q
  • AVideo VendorWWBN Affected up to 26.0 Fixed in — No fix listed CNA
  • wwbn/avideo (Packagist) Vendor— Affected up to 26.0 Fixed in — No fix listed GHSA-c4xj-x7p8-3x7q

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*up to 26.0VulnerableWWBN
  • cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:* Versions up to 26.0 Vulnerable ·WWBN

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34611
  2. 2026-10-03 Alias added: GHSA-c4xj-x7p8-3x7q

References

Exploit 1

Advisory 1

Other 2

  • TI-2026-29567 Code injection in WWBN AVideo CVSS 3.1CRITICAL 10.0
  • TI-2026-26095 AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php CVSS 3.1CRITICAL 9.4
  • TI-2026-25874 Improper access control in WWBN AVideo CVSS 3.1CRITICAL 10.0
  • TI-2026-25758 AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass) CVSS 3.1CRITICAL 9.8
  • TI-2024-20951 An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2023-10706 OS injection vulnerability in World Wide Broadcast Network AVideo version before 12.4… CVSS 3.1CRITICAL 9.8
See all 189 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences