AVideo has SSRF Protection Bypass via HTTP Redirect in Image Download Endpoints

published 2026-03-26 7 mo ago modified 2026-10-26 13 d ago also GHSA-f359-r3pv-2phf , EUVD-2026-16652

cvss: 6.5; version 3.1, NVD
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

WWBN AVideo is an open source video platform. In versions up to and including 26.0, `isSSRFSafeURL()` validates URLs against private/reserved IP ranges before fetching, but `url_get_contents()` follows HTTP redirects without re-validating the redirect target. An attacker can bypass SSRF protection by redirecting from a public URL to an internal target. Commit 8b7e9dad359d5fac69e0cbbb370250e0b284bc12 contains a patch.

Patch / fix

links 1

github.com/WWBN/AVideo@8b7e9da commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-03-27)

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-f359-r3pv-2phf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/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	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected packages

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

Affected products

WWBN AVideo

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /WWBN/AVideo/commit/8b7e9dad359d5fac69e0cbbb370250e0b284bc12
web, patch
github.com /WWBN/AVideo/security/advisories/GHSA-f359-r3pv-2phf
exploit, web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2026-33766
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