FACTION Allows Authentication Bypass via User Creation

published 2025-03-03 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-6005

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

FACTION is a PenTesting Report Generation and Collaboration Framework. Authentication is bypassed when an attacker registers a new user with admin privileges. This is possible at any time without any authorization. The request must follow the validation rules (no missing information, secure password, etc) but there are no other controls stopping them. This vulnerability is fixed in 1.4.3.

Patch / fix

fixed in 1 links 1

owasp faction 1.4.3

github.com/factionsecurity/faction@0a6848d commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 20 mo ago (2025-03-03)

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

factionsecurity faction

Classification

Weakness

CWE-287 Improper Authentication

References

Sources

CVE List CVE-2025-27422
NVD CVE-2025-27422

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary