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WWBN AVideo patched a critical stored DOM-based cross-site scripting flaw, tracked as CVE-2026-54458, in the YPTSocket plugin affecting versions before 29.0. The vulnerability lets an unauthenticated remote attacker obtain a signed WebSocket token, inject malicious values through WebSocket connection parameters, and have attacker-controlled HTML or JavaScript broadcast to connected users and rendered in the online-users debug panel. If an administrator views a page displaying that panel, the attacker can execute arbitrary JavaScript in the admin’s authenticated browser session.
The impact includes theft of non-HttpOnly cookies and CSRF tokens, execution of admin-only actions, exfiltration of dashboard data, and possible full administrative takeover. A related GitHub fix updated plugin/YPTSocket/MessageSQLiteV2.php to validate webSocketSelfURI so only http and https URLs are accepted, blocking javascript: URI injection, and to sanitize page_title with HTML escaping to prevent script injection from untrusted input. The issue carries a CVSS 3.1 score of 9.6 and is classified as CWE-79.
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2 events from the most recent confirmed update back to the earliest known activity.
CVE-2026-54458 was published as a critical stored DOM-based XSS vulnerability in the YPTSocket plugin of WWBN AVideo affecting versions before 29.0. The disclosure states the flaw could let an unauthenticated attacker broadcast malicious HTML/JavaScript to connected clients and potentially achieve administrative takeover if an admin renders the affected panel.
A GitHub commit modified plugin/YPTSocket/MessageSQLiteV2.php to validate webSocketSelfURI to only allow http/https URLs and to HTML-encode page_title, mitigating injection risks in the YPTSocket component.
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WWBN **AVideo** was found to contain multiple high-severity vulnerabilities that can let attackers seize control of deployments, hijack user sessions, and access internal network resources. On uninitialized instances running version **25.0 or earlier**, `install/checkConfiguration.php` could be abused without authentication to complete setup, create an administrator account, and write configuration files, enabling full application takeover under **CVE-2026-33038**. Separate insecure defaults in the official Docker deployment path, tracked as **CVE-2026-33037**, left new installations exposed to immediate administrative compromise because the admin password defaulted to **"password"** and database credentials defaulted to `avideo/avideo`, with no forced password change or effective hardening. AVideo also exposed users and infrastructure through web-facing flaws in session handling and URL fetching. Under **CVE-2026-33043**, `/objects/phpsessionid.json.php` disclosed active PHP session IDs to unauthenticated requests, and permissive CORS behavior could allow cross-origin session theft and account takeover. Two SSRF issues affected the unauthenticated `plugin/LiveLinks/proxy.php` endpoint: **CVE-2026-33039** allowed redirect-based bypass of URL safety checks in version **25.0 and earlier**, while **CVE-2026-33480** showed that `isSSRFSafeURL()` could also be bypassed with IPv4-mapped IPv6 addresses, extending exposure through version **26.0** and enabling access to localhost, RFC1918 networks, and cloud metadata services. WWBN issued fixes in **AVideo 26.0** for most of the disclosed flaws, with an additional patch published for the IPv6-based SSRF bypass.
Jun 29, 2026
WWBN **AVideo** versions up to and including `26.0` are affected by two high-severity flaws that can lead to **remote code execution**. `CVE-2026-33482` is an OS command injection bug in `sanitizeFFmpegCommand()`, which strips some shell metacharacters but fails to remove bash command substitution using `$()`. Because the resulting `ffmpeg` command is later executed in a double-quoted `sh -c` context by `execAsync()`, an attacker able to craft a valid encrypted payload can run arbitrary commands on the standalone encoder server. A separate issue, `CVE-2026-33507`, allows unauthenticated code execution through the plugin import workflow. The `objects/pluginImport.json.php` endpoint permits admin users to upload and install plugin ZIP archives containing executable PHP, but lacks **CSRF** protection; with `session.cookie_samesite = 'None'` on HTTPS connections, an attacker can trick a logged-in administrator into silently importing a malicious plugin and deploying a PHP webshell. Fixes were introduced in commits `25c8ab90269e3a01fb4cf205b40a373487f022e1` and `d1bc1695edd9ad4468a48cea0df6cd943a2635f3`.
Jun 29, 2026
A critical, **zero-click unauthenticated OS command injection** vulnerability was disclosed in the open-source video hosting/streaming platform **AVideo**, tracked as **CVE-2026-29058**. The flaw affects versions **prior to 7.0** (including **6.0**) and allows remote attackers to execute arbitrary operating system commands on the server without user interaction or prior privileges, creating a path to **full server compromise**, **data exfiltration** (e.g., configuration secrets, internal keys, credentials), and **service disruption**. The issue stems from `objects/getImage.php`, where attacker-controlled input in the `base64Url` GET parameter is Base64-decoded and incorporated into a double-quoted `ffmpeg` shell command without proper escaping/neutralization of shell metacharacters and command substitution (CWE-78). The vulnerability was reported by security researcher **Arkmarta**, and remediation is available by upgrading to **AVideo 7.0 or later**, which includes the official patch.
Jun 29, 2026