Dashboard / CVE-2026-121562

CVE-2026-121562

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 74/100
Published: 2026-11-03 Modified: 2026-11-12 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: Low
VI: None
VA: None

Description

CTFd 3.1.0 before 3.8.7 contains an information disclosure vulnerability in the /api/v1/teams list endpoint that exposes non-public team custom field values. Unauthenticated attackers can paginate GET requests to collect hidden registration data such as emails, phone numbers, and student IDs when team mode and public visibility are enabled.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
CTFd CTFd 3.1.0 < 3.8.7
CTFd CTFd 3.1.0 < 3.8.7
CTFd CTFd 3.1.0 < 3.8.7

References & Advisories (7)

https://github.com/CTFd/CTFd/releases/tag/3.8.7
technical-description release-notes
https://blog.ctfd.io/ctfd-3-8-7/
technical-description

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.33%
Raw Score 0.003260
Percentile 26.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00326
2026-11-13
0.00326
2026-11-12
0.00326
2026-11-10
0.00326
2026-11-09
0.00326
2026-11-08
0.00326
2026-11-07
0.00326
2026-11-06
0.00326
2026-11-05
0.00326
2026-11-04
0.00326

Intelligence Sources

mitre ref →
nvd ref →

External Links