CVE-2026-84479
published 2026-09-01CVE-2026-84479: WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header. The…
PriorityP260critical9.1CVSS 3.1
AVNACLPRNUINSUCHIHAN
EPSS
0.55%
44.1th percentile
WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header. The isAVideoEncoder()/isAVideoMobileApp() checks match HTTP_USER_AGENT against a hardcoded literal ("AVideoEncoder"/"AVideoMobileApp") with no IP check or shared secret. An attacker who submits valid credentials and sets User-Agent: AVideoEncoder bypasses two-factor authentication, skips brute-force captcha escalation, and avoids being recorded in the login/device audit history. No patch is available at the time of publication.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| wwbn | avideo | <= 29.0 | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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
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GHSA
WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header.
ghsa_unreviewed·2026-09-02
CVE-2026-84479 [CRITICAL] CWE-290 WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header.
WWBN AVideo (current e01e41ecc and earlier) makes three login-time security controls depend solely on the client-supplied User-Agent header. The isAVideoEncoder()/isAVideoMobileApp() checks match HTTP_USER_AGENT against a hardcoded literal ("AVideoEncoder"/"AVideoMobileApp") with no IP check or shared secret. An attacker who submits valid credentials and sets User-Agent: AVideoEncoder bypasses two-factor authentication, skips brute-force captcha escalation, and avoids being recorded in the login/device audit history. No patch is available at the time of publication.
VulDB
WWBN AVideo up to 29.0 Login Security isAVideoEncoder/isAVideoMobileApp User-Agent improper authentication (EUVD-2026-69721)
vuldb·2026-09-02·CVSS 9.1
CVE-2026-84479 [CRITICAL] WWBN AVideo up to 29.0 Login Security isAVideoEncoder/isAVideoMobileApp User-Agent improper authentication (EUVD-2026-69721)
A vulnerability, which was classified as critical, was found in WWBN AVideo up to 29.0. Impacted is the function isAVideoEncoder/isAVideoMobileApp of the component Login Security. Such manipulation of the argument User-Agent leads to improper authentication.
This vulnerability is uniquely identified as CVE-2026-84479. The attack can be launched remotely. No exploit exists.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-01
Published