CVE-2026-33731
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
In WWBN AVideo prior to version 29.0, a vulnerability in the Authorize.Net webhook handler allows an attacker to bypass signature verification and forge webhook requests with arbitrary payment amounts and target user IDs. The attacker can credit arbitrary wallet balances to any user without a corresponding payment and activate premium subscriptions, leading to free access to paid content and direct revenue loss.
Risk Assessment
The organization faces direct financial losses due to the ability to credit user wallets without actual payments and provide free access to paid content. This can also compromise the integrity of the payment system and user trust.
Recommendation
Immediately update WWBN AVideo to version 29.0 or later, which includes a fix for this vulnerability. Before updating, consider temporarily disabling or restricting access to the Authorize.Net webhook endpoint.
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. In versions prior to 29.0, the Authorize.Net webhook handler at plugin/AuthorizeNet/webhook.php contains a signature verification bypass that allows an attacker to forge webhook requests with arbitrary payment amounts and target user IDs. By supplying a valid transaction ID from a small legitimate purchase, the attacker bypasses signature validation and credits arbitrary wallet balances to any user account via attacker-controlled payload fields. Three flaws combine into an exploit chain: signature bypass via OR logic (webhook.php:33), payload values override API-fetched values (AuthorizeNet.php:169-171, webhook.php:44-48) and a missing approval check (webhook.php:61-75). By forging payment metadata, an attacker can credit arbitrary amounts to any user's wallet without a corresponding payment and include a plans_id to activate premium subscriptions (webhook.php:86-134), enabling free access to all paid and premium content and causing direct revenue loss to the platform owner. This issue has been fixed in version 29.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

