VulnerabilityAnalyzed

CVE-2025-59833

Flag Forge is a Capture The Flag (CTF) platform.

HIGH 7.5EPSS 0.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Flag Forge is a Capture The Flag (CTF) platform. In versions from 2.1.0 to before 2.3.0, the API endpoint GET /api/problems/:id returns challenge hints in plaintext within the question object, regardless of whether the user has unlocked them via point deduction. Users can view all hints for free, undermining the business logic of the platform and reducing the integrity of the challenge system. This issue has been patched in version 2.3.0.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.35% probability · 28th percentile
CISA KEV: Not listed
Weakness: CWE-200
Affected: flagforge/flagforge
Source: security-advisories@github.com

References

https://github.com/FlagForgeCTF/flagForge/security/advisories/GHSA-hm85-2j65-j8j2Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.