AVideo: Unauthenticated PHP session store exposed to host network via published memcached port
Date: 2026-03
Affected: composer/wwbn/avideo
Attack vector: auth-bypass
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-29093
CWE: CWE-287
CWE-668
CVSS: 8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

## Summary The official `docker-compose.yml` publishes the memcached service on host port 11211 (`0.0.0.0:11211`) with no authentication, while the Dockerfile configures PHP to store all user sessions in that memcached instance. An attacker who can reach port 11211 can read, modify, or flush session data — enabling session hijacking, admin impersonation, and mass session destruction without any application-level authentication. ## Severity **High** (CVSS 3.1: 8.1) `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H` - **Attack Vector:** Network — `docker-compose.yml` binds memcached to `0.0.0.0:11211` on the host - **Attack Complexity:** High — exploitation requires port 11211 to be network-reachable, which depends on external firewall/security group configuration beyond the attacker's control - **Privileges Required:** None — memcached has no authentication mechanism enabled - **User Interaction:** None - **Scope:** Unchanged — impact is to the AVideo application's session management - **Confidentiality Impact:** High — session data includes user IDs, admin flags, email addresses, and password hashes - **Integrity Impact:** High — an attacker can modify session data to inject admin privileges or impersonate any user - **Availability Impact:** High — `flush_all` destroys all active sessions, forcing mass logout ## Affected Component - `docker-compose.yml` — memcached service `ports` directive (line 203) - `Dockerfile` — PHP session configuration (lines 150-151) ## CWE - **CWE-


Mitigations:

Architectural layers (MAESTRO):