Auth bypass in Fs-Code Fs Poster

CVE-2025-30960

Missing Authorization vulnerability in fs-code FS Poster fs-poster.This issue affects FS Poster: from n/a through <= 6.5.8.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-30960: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-30960?
CVE-2025-30960 is a high-severity vulnerability in Fs-Code Fs Poster, classified under Missing Authorization. CVSS score: 8.3/10. Published 2025-04-16.
How severe is CVE-2025-30960?
High severity. CVSS v3 base score is 8.3 out of 10.
Is CVE-2025-30960 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.