PT-2025-39418 · Flagforge · Flagforge

Aryan4859 · Published 2025-09-25 · Updated 2025-10-08 · CVE-2025-59841

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Flag Forge versions 2.2.0 through 2.3.0

Description Flag Forge improperly manages session invalidation. After a user logs out, they can still access protected endpoints, such as /api/profile, and CSRF tokens remain valid. This allows continued access and potential unauthorized actions post-logout.

Recommendations Update to version 2.3.1 or later.

Exploit

Fix

Insufficient Session Expiration

Session Fixation

Weakness Enumeration

CWE-613

CWE-384

Related Identifiers

CVE-2025-59841

GHSA-H6PR-4CWV-6CJG

Affected Products

Flagforge

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59841.json · Exploit
• https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-h6pr-4cwv-6cjg · Vendor Advisory
• https://github.com/FlagForgeCTF/flagForge/commit/304b6c82a4f76871b336404b91e5cdd8a7d7d5bd · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-59841 · Security Note
• https://osv.dev/vulnerability/CVE-2025-59841 · Vendor Advisory
• https://twitter.com/CVEnew/status/1971241129162019214 · Twitter Post
• https://t.me/CVEtracker/33346 · Telegram Post
• https://t.me/cveNotify/137844 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1971261319698420169 · Twitter Post