WWBN AVideo has incomplete fix for CVE-2026-33500 (XSS)_CVE-2026-41063

5.4 / 10

MEDIUM

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

Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, the incomplete XSS fix in AVideo's `ParsedownSafeWithLinks` class overrides `inlineMarkup` for raw HTML but does not override `inlineLink()` or `inlineUrlTag()`, allowing `javascript:` URLs in markdown link syntax to bypass sanitization. Commit cae8f0dadbdd962c89b91d0095c76edb8aadcacf contains an updated fix.

Basic Information

ID CVE-2026-41063

Source GitHub_M

Published Apr 21, 2026 at 22:59

Affected Product

Vendor WWBN

Product AVideo

Version <= 29.0

Affected Versions WWBN AVideo <= 29.0

CWE Classification

CWE-79

References

{
    "lastseen": "",
    "description": "WWBN AVideo is an open source video platform. In versions 29.0 and below, the incomplete XSS fix in AVideo's `ParsedownSafeWithLinks` class overrides `inlineMarkup` for raw HTML but does not override `inlineLink()` or `inlineUrlTag()`, allowing `javascript:` URLs in markdown link syntax to bypass sanitization. Commit cae8f0dadbdd962c89b91d0095c76edb8aadcacf contains an updated fix.",
    "published": "2026-04-21T22:59:52.770Z",
    "modified": "2026-04-21T22:59:52.770Z",
    "type": "cve",
    "title": "WWBN AVideo has incomplete fix for CVE-2026-33500 (XSS)",
    "source": "GitHub_M",
    "references": "https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc\nhttps://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26j\nhttps://github.com/WWBN/AVideo/commit/3ae02fa240939dbefc5949d64f05790fd25d728d\nhttps://github.com/WWBN/AVideo/commit/cae8f0dadbdd962c89b91d0095c76edb8aadcacf",
    "id": "CVE-2026-41063",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "WWBN AVideo <= 29.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "AVideo",
    "version": "<= 29.0",
    "vendor": "WWBN",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}