WWBN AVideo up to 26.0 Endpoint uploadPoster.php User::isLogged authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in WWBN AVideo up to 26.0. Affected by this issue is the function User::isLogged of the file plugin/Live/uploadPoster.php of the component Endpoint. The manipulation results in authorization. This vulnerability is known as CVE-2026-34247. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in WWBN AVideo up to 26.0. Affected is the function User::isLogged of the file plugin/Live/uploadPoster.php of the component Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Live/uploadPoster.php` endpoint allows any authenticated user to overwrite the poster image for any scheduled live stream by supplying an arbitrary `live_schedule_id`. The endpoint only checks `User::isLogged()` but never verifies that the authenticated user owns the targeted schedule. After overwriting the poster, the endpoint broadcasts a `socketLiveOFFCallback` notification containing the victim's broadcast key and user ID to all connected WebSocket clients. Commit 5fcb3bdf59f26d65e203cfbc8a685356ba300b60 fixes the issue.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-34247 since 03/26/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

By approaching the search of inurl:plugin/Live/uploadPoster.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch 5fcb3bdf59f26d65e203cfbc8a685356ba300b60 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-16717). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 5fcb3bdf59f26d65e203cfbc8a685356ba300b60

Timelineinfo

03/26/2026 CVE reserved
03/27/2026 +1 days Advisory disclosed
03/27/2026 +0 days VulDB entry created
03/30/2026 +3 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-g3hj-mf85-679g
Status: Confirmed

CVE: CVE-2026-34247 (🔒)
GCVE (CVE): GCVE-0-2026-34247
GCVE (VulDB): GCVE-100-353970
EUVD: 🔒

Entryinfo

Created: 03/27/2026 23:00
Updated: 03/30/2026 05:17
Changes: 03/27/2026 23:00 (67), 03/30/2026 05:17 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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