CVE-2026-33650 json
AVideo's Video Moderator Privilege Escalation via Ownership Transfer Enables Arbitrary Video Deletion
published 2026-03-23 7 mo ago modified 2026-06-17 4 mo ago also GHSA-8x77-f38v-4m5j , EUVD-2026-14488
- cvss
- 7.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
WWBN AVideo is an open source video platform. In versions up to and including 26.0, a user with the "Videos Moderator" permission can escalate privileges to perform full video management operations — including ownership transfer and deletion of any video — despite the permission being documented as only allowing video publicity changes (Active, Inactive, Unlisted). The root cause is that `Permissions::canModerateVideos()` is used as an authorization gate for full video editing in `videoAddNew.json.php`, while `videoDelete.json.php` only checks ownership, creating an asymmetric authorization boundary exploitable via a two-step ownership-transfer-then-delete chain. Commit 838e16818c793779406ecbf34ebaeba9830e33f8 contains a patch.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-8x77-f38v-4m5j referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L |
| GitHub | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | wwbn/avideo | <=26.0 |
no fix listed |
Affected products
- WWBN AVideo
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/WWBN/AVideo/commit/838e16818c793779406ecbf34ebaeba9830e33f8
web, patch
-
github.com
/WWBN/AVideo/security/advisories/GHSA-8x77-f38v-4m5j
exploit, web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-33650
advisory
-
github.com
/WWBN/AVideo
package
Sources
- CVE List CVE-2026-33650
- GitHub Advisory GHSA-8x77-f38v-4m5j
- NVD CVE-2026-33650
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