CVE-2026-59808
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns video_id_hash credentials for any video by encoder_queue_id without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner. Attackers with upload permission can retrieve an administrator's video_id_hash by omitting the videos_id parameter, then use that hash in an unauthenticated request to gain administrative session access and modify system configuration.
Risk Assessment
Risk of full administrator account takeover and unauthorized modification of system configuration, potentially leading to platform-wide security compromise.
Recommendation
Update AVideo to a patched version. Restrict upload permissions and monitor for unauthorized requests.
Other vulnerabilities in AVideo
See all- CVE-2026-43884High
AVideo is an open source video platform that is vulnerable to SSRF attacks in versions up to 29.0. Two endpoints improperly validate user-supplied URLs, allowing an attacker to redirect to internal resources.
- CVE-2026-43873High
AVideo is an open-source video platform that, in versions up to 29.0, exposes the local CloneSite shared secret in the HTTP response to every unauthenticated request. This secret can be exploited by an attacker to impersonate the victim and gain access to the remote database.
- CVE-2026-43874High
AVideo is an open-source video platform that has a vulnerability in versions up to 29.0 allowing an unauthenticated attacker to send malicious messages via WebSocket. This vulnerability arises from improper JSON data handling, enabling PHP code execution on the server.
- CVE-2026-72748Critical
AVideo has an unauthenticated arbitrary file write vulnerability in the aVideoEncoderChunk.json.php endpoint, allowing remote attackers to write up to 4 GB of arbitrary content via HTTP PUT without authentication.
- CVE-2026-64625Critical
AVideo before 29.0 contains an incomplete fix for CVE-2026-45578. execAsync() re-wraps escaped commands in double-quoted sh -c, allowing command substitution via $() and backticks. Attackers can inject arbitrary OS commands through the Live plugin on_publish.php endpoint despite escapeshellarg() protection.
- CVE-2026-54458Critical
WWBN AVideo before version 29.0 contains a stored DOM Cross-Site Scripting vulnerability in the YPTSocket plugin. An unauthenticated remote attacker can execute arbitrary JavaScript in the context of an administrator viewing the online users debug panel.
- CVE-2025-34433Critical
AVideo versions 14.3.1 prior to 20.1 contain an unauthenticated remote code execution vulnerability caused by predictable generation of an installation salt using PHP uniqid(). The installation timestamp is exposed via a public endpoint, and a derived hash identifier is accessible through unauthenticated API responses, allowing attackers to brute-force the remaining entropy. The recovered salt can then be used to encrypt a malicious payload supplied to a notification API endpoint that evaluates attacker-controlled input, resulting in arbitrary code execution as the web server user.
- CVE-2025-34434Critical
AVideo versions prior to 20.1 with the ImageGallery plugin enabled is vulnerable to unauthenticated file upload and deletion. Plugin endpoints responsible for managing gallery images fail to enforce authentication checks and do not validate ownership, allowing unauthenticated attackers to upload or delete images associated with any image-based video.
- CVE-2026-81733Medium
WWBN AVideo through 30.0 (and master up to commit 4cb576e) contains a cross-site request forgery vulnerability in plugin/Live/myLiveControls.save.json.php. The endpoint only checks that a user is logged in and processes customUrl, customMessage, and autoRedirect parameters from $_REQUEST via a GET request without enforcing a CSRF token or origin check. An attacker who lures a logged-in streamer to a malicious page can silently change the live-channel viewer-redirect settings, causing viewers to be redirected to a phishing site or shown a spoofed message.
- CVE-2026-81732Medium
WWBN AVideo through version 30.0 fails to enforce authentication on the report4.json.php and report4.1.json.php endpoints, allowing unauthenticated access to user registration statistics. Attackers can send GET requests to these endpoints to retrieve daily and cumulative user-registration counts without any session or authorization.
Original NVD description (English source)
AVideo through commit 9c39d8c8 contains an authentication bypass vulnerability where deduplicateByEncoderQueueId() returns video_id_hash credentials for any video by encoder_queue_id without ownership verification, and useVideoHashOrLogin() converts this hash into passwordless login as the video owner. Attackers with upload permission can retrieve an administrator's video_id_hash by omitting the videos_id parameter, then use that hash in an unauthenticated request to gain administrative session access and modify system configuration.