# CVE-2026-116800: WWBN AVideo before 29.5.0 Local PHP File Inclusion via Accept-Language Header

Status: published. Published: 2026-10-26. Updated: 2026-11-02.

WWBN AVideo before 29.5.0 contains a local file inclusion vulnerability that allows unauthenticated attackers to include PHP files outside the locale directory via a crafted Accept-Language header. Attackers can use overlapping traversal sequences like ....// to bypass single-pass removal in setLanguage(), executing existing server-side PHP files in the application context.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/WWBN/AVideo/commit/22e8c734ec89bb793d09dcc83f630e42d5fcaa8a

## Affected products and versions

- WWBN / AVideo: ≥ 0; < 29.5.0 (affected, semver); 29.5.0 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.2 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.51% as of 2026-11-02; percentile 43.19%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/WWBN/AVideo/security/advisories/GHSA-r3jc-85h3-h7g2 (CNA: VulnCheck; vendor-advisory)

- https://github.com/WWBN/AVideo/commit/22e8c734ec89bb793d09dcc83f630e42d5fcaa8a (CNA: VulnCheck; patch)

- https://github.com/WWBN/AVideo/releases/tag/v29.5.0 (CNA: VulnCheck; release-notes)

- https://www.vulncheck.com/advisories/wwbn-avideo-before-29.5.0-local-php-file-inclusion-via-accept-language-header (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-116800; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116800; retrieved 2026-11-02; source updated Not reported

Revision: 3bdebbc9e095be9a084167dc97944b44cf87080a4a46314b8001c697fac0d84e

Canonical: https://y2.dev/cve/CVE-2026-116800

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