Vulnerability · Published May 26, 2026 · Assigned by GitHub_M

CVE-2026-44669Faction: Stored XSS in Assessment Attachment Filename Preview Rendering

High 8.7

In plain English

A high-severity cross-site scripting in faction from factionsecurity. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.2%top 88.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

FACTION is a PenTesting Report Generation and Collaboration Framework. Prior to 1.8.3, Faction is vulnerable to stored cross-site scripting (XSS) via attachment filenames in assessment file preview flows. User-supplied filename values are persisted and later rendered into HTML/attribute contexts without output encoding, allowing attacker-controlled JavaScript to execute in the browser of any user who views the affected page. Because the payload is stored server-side and rendered to other users, exploitation is persistent and can impact privileged accounts. This vulnerability is fixed in 1.8.3.

Affected products (as reported)

Vendor	Product	Versions
factionsecurity	faction	< 1.8.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References

https://github.com/factionsecurity/faction/security/advisories/GHSA-f2jc-wx44-mr54 x_refsource_CONFIRM
https://github.com/factionsecurity/faction/releases/tag/1.8.3 x_refsource_MISC