CVE-2026-41063
CVE-2026-41063 is a medium-severity vulnerability in Wwbn Avideo with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- EPSS exploit prediction: 0% (12th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-24543
- Weakness: CWE-79
- Affected product: Wwbn Avideo
- Published:
- Last modified:
Description
WWBN AVideo is an open source video platform. In versions 29.0 and below, an 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.
Frequently asked questions
- What is CVE-2026-41063?
- WWBN AVideo is an open source video platform. In versions 29.0 and below, an 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.
- How severe is CVE-2026-41063?
- CVE-2026-41063 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-41063 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-41063?
- CVE-2026-41063 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-41063?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-41063 have an EU (EUVD) identifier?
- Yes. CVE-2026-41063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24543.
- When was CVE-2026-41063 published?
- CVE-2026-41063 was published on 2026-04-21 and last updated on 2026-06-17.
References
- https://github.com/WWBN/AVideo/commit/3ae02fa240939dbefc5949d64f05790fd25d728d
- https://github.com/WWBN/AVideo/commit/cae8f0dadbdd962c89b91d0095c76edb8aadcacf
- https://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26j
- https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc
Affected products (1)
- cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*
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