CVE-2026-33684
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
A privilege escalation vulnerability in WWBN AVideo prior to version 29.0 allows any user who can solve a CAPTCHA to self-grant elevated permissions during registration via unguarded API parameters. Attackers can mark accounts as email-verified and obtain upload, streaming, and meeting creation rights.
Risk Assessment
Attackers can bypass administrative access controls, gaining unauthorized privileges that compromise platform integrity and confidentiality, potentially leading to resource abuse.
Recommendation
Immediately upgrade WWBN AVideo to version 29.0 or later, which includes a fix for this vulnerability.
Other vulnerabilities in WWBN AVideo
See all- CVE-2026-89243High
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in UserGroups::setGroup_name() that fails to sanitize group_name input. Administrators with canAdminUserGroups permission can inject malicious HTML and JavaScript that executes in the browser when other administrators access the user manager interface.
- CVE-2026-43885High
WWBN AVideo is an open source video platform that, in versions up to 29.0, allows unauthenticated users to read APISecret from objects/plugins.json.php. This enables them to call protected API endpoints, such as users_list, without logging in.
- CVE-2026-86190Critical
WWBN AVideo contains a broken access control vulnerability in videoViewsInfo endpoints that returns complete user records including password hashes, recovery tokens, and live session identifiers to unauthenticated callers when a hash parameter is provided. Attackers can use the disclosed session identifier to hijack viewer sessions, including administrator accounts, and obtain sensitive personal data for all video viewers.
- CVE-2026-86189Critical
WWBN AVideo contains a path traversal vulnerability in notify.ffmpeg.json.php that allows unauthenticated attackers to write files to arbitrary locations by supplying a caller-chosen path in the avideoRelativePath parameter. Attackers can replay any previously issued ciphertext as a notifyCode token, which is decrypted but never validated, to bypass authentication and write files to the application root and subdirectories.
- CVE-2026-85154Critical
WWBN AVideo contains an authentication failure vulnerability where the video_id_hash credential is a non-expiring, non-revocable bearer token that grants full administrator session access to the video owner's account. Attackers who obtain a video_id_hash can replay it indefinitely to authenticate as the video owner with full privileges, and the credential remains valid even after the owner changes their password.
- CVE-2026-105089High
WWBN AVideo through 29.2.0 contains a stored cross-site scripting vulnerability that allows users with upload permission to inject script by setting a malicious video trailer1 URL. The value is rendered unescaped in YouPHPFlix2 templates and channel playlists, letting attackers break out of onclick strings or iframe src attributes to execute JavaScript in victims' browsers.
- CVE-2026-105086High
WWBN AVideo 12.4 through 29.2.0 contains a stored cross-site scripting vulnerability that allows authenticated uploaders to inject HTML by submitting doubly-encoded entities in video titles. Because safeString() strips tags before decoding entities and runs twice via setTitle() and save(), attackers can store markup that executes in trending, gallery, embed, and playlist pages.
- CVE-2026-92915High
WWBN AVideo through commit e01e41ecc contains a broken access control flaw in objects/userVerifyEmail.php. The script disables the login requirement, takes users_id directly from the query string and calls User::sendVerificationLink() with no session, CSRF token, relationship check or rate limit, allowing an unauthenticated attacker to send unlimited verification emails, enumerate accounts and write password-recovery tokens onto victim accounts.
- CVE-2026-91965High
WWBN AVideo through 29.0 fails to enforce user-group restrictions in the plugin/Live/stats.json.php and plugin/Live/calendar.json.php endpoints. Unauthenticated attackers can retrieve restricted live transmission details including stream keys, titles, descriptions, owner information, and direct HLS playback URLs by accessing these endpoints.
- CVE-2026-90552Medium
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate playlist ownership in the Playlists_schedules/list.json.php and Live/calendar.json.php endpoints, allowing authenticated and unauthenticated users to read private playlist schedule metadata. Attackers with canStream privileges or no authentication can retrieve schedule names, descriptions, timestamps, and playlist identifiers by querying these endpoints without ownership checks.
Original NVD description (English source)
WWBN AVideo is an open source video platform. Prior to version 29.0, Privilege Escalation is possible through unguarded permission parameters in signUp API, which allows any user who can solve a CAPTCHA to self-grant elevated permissions during account registration. The set_api_signUp method in the API plugin accepts emailVerified, canUpload, canStream, and canCreateMeet parameters from user-supplied input and applies them to newly created accounts without verifying that the request was authenticated with a valid APISecret. By self-granting account attributes, attackers can mark their own accounts as email-verified without owning the address (bypassing email-gated functionality) and award themselves upload, streaming, and meeting-creation permissions, circumventing administrator access controls that intentionally restrict these capabilities for new users. This issue has been fixed in version 29.0
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

