AVideo affected by unauthenticated application takeover via exposed web installer on uninitialized deployments

published 2026-03-17 7 mo ago modified 2026-06-17 4 mo ago also GHSA-2f9h-23f7-8gcx , EUVD-2026-13577

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits: 0; none known

WWBN AVideo is an open source video platform. Versions 25.0 and below are vulnerable to unauthenticated application takeover through the install/checkConfiguration.php endpoint. install/checkConfiguration.php performs full application initialization: database setup, admin account creation, and configuration file write, all from an unauthenticated POST input. The only guard is checking whether videos/configuration.php already exists. On uninitialized deployments, any remote attacker can complete the installation with attacker-controlled credentials and an attacker-controlled database, gaining full administrative access. This issue has been fixed in version 26.0.

Patch / fix

fixed in 1 links 1

wwbn avideo 26.0

github.com/WWBN/AVideo@b3fa786 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 7 mo ago (2026-03-20)

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-2f9h-23f7-8gcx referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	wwbn/avideo	<=25.0	no fix listed

Affected products

WWBN AVideo

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

github.com /WWBN/AVideo/commit/b3fa7869dcb935c8ab5c001a88dc29d2f92cf8e1
web, patch
github.com /WWBN/AVideo/security/advisories/GHSA-2f9h-23f7-8gcx
exploit, web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2026-33038
advisory
github.com /WWBN/AVideo
package

Sources

Fencer Vulns 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.

Summary