AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass)

published 2026-03-19 7 mo ago modified 2026-06-17 4 mo ago also GHSA-mcj5-6qr4-95fj , EUVD-2026-20074

cvss: 9.8; 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. Prior to version 26.0, an unauthenticated SQL injection vulnerability exists in `objects/category.php` in the `getAllCategories()` method. The `doNotShowCats` request parameter is sanitized only by stripping single-quote characters (`str_replace("'", '', ...)`), but this is trivially bypassed using a backslash escape technique to shift SQL string boundaries. The parameter is not covered by any of the application's global input filters in `objects/security.php`. Version 26.0 contains a patch for the issue.

Patch / fix

fixed in 1 links 1

wwbn avideo 26.0

github.com/WWBN/AVideo@206d38e commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 7 mo ago (2026-03-24)

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-mcj5-6qr4-95fj referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	wwbn/avideo	<=26.0	no fix listed

Affected products

WWBN AVideo

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

github.com /WWBN/AVideo/commit/206d38e97b8c854771bb2907b13f9f36e8bcf874
web, patch
github.com /WWBN/AVideo/security/advisories/GHSA-mcj5-6qr4-95fj
web, exploit, mitigation, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2026-33352
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