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CVE-2025-59843

21
FAUCET Score

CVE-2025-59843 is a medium-severity information disclosure vulnerability affecting Flag Forge CTF platforms from versions 2.0.0 up to, but not including, 2.3.2. This flaw allows unauthenticated attackers to retrieve user email addresses via the public /api/user/[username] endpoint. The vulnerability has a CVSS score of 5.3 and is easily exploitable over the network with low attack complexity, potentially leading to user email exposure. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE. Users are advised to upgrade to Flag Forge version 2.3.2 or later, as no workarounds exist.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0, < 2.3.1CPE matchmatch criteria
cpe:2.3:a:flagforge:flagforge:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 19th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / FlagForgeCTF/flagForge/commit/1b033f1b6e20fbf6df422d5d1afc9b2347528ace
github.com / FlagForgeCTF/flagForge/compare/v2.3.1...v2.3.2
github.com / FlagForgeCTF/flagForge/releases/tag/v2.3.1
github.com / FlagForgeCTF/flagForge/security/advisories/GHSA-qqjv-8r5p-7xpj
Vendor Advisory