CVE-2026-126806 json
WWBN AVideo 14.3 through 29.7.1 Stored XSS via Video Source Tag
published 20h ago modified 13h ago also EUVD-2026-124021 , GHSA-2qq6-qfcq-jmr9
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository WWBN/AVideo. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 8.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no EPSS score yet
- public exploits
- 0
- none known
Summary
WWBN AVideo 14.3 through 29.7.1 contains a stored cross-site scripting vulnerability that allows uploaders to inject scripts via the videoDownloadedLink value stored unescaped through objects/aVideoEncoder.json.php. Attackers can embed event-handler payloads in the URL host rendered as a Source tag in view/managerVideos_body.php, executing in administrator sessions to install plugin archives containing PHP.
Patch / fix
Is CVE-2026-126806 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N |
| CNA | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
Affected products
- WWBN AVideo
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/WWBN/AVideo/commit/da1da205608d57b1e695a7fad8288a2f5f9a0e0f
patch
-
github.com
/WWBN/AVideo/security/advisories/GHSA-2qq6-qfcq-jmr9
vendor-advisory, advisory
-
github.com
/WWBN/AVideo/blob/v29.7.1/objects/functionTags.php#L198-L221
technical-description
-
github.com
/WWBN/AVideo/blob/v29.7.1/view/managerVideos_body.php#L1997-L2011
technical-description
-
vulncheck.com
/advisories/wwbn-avideo-14.3-through-29.7.1-stored-xss-via-video-source-tag
third-party-advisory
Sources
- CVE List CVE-2026-126806
- NVD CVE-2026-126806
- Maintainer advisory GHSA-2qq6-qfcq-jmr9
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of WWBN/AVideo published their own advisory on GitHub. Reviewed sources take precedence over it.