CVE-2024-34699

GZ::CTF allows unprivileged user can perform XSS attacks by constructing malicious team names.

MEDIUM
6.5
CVSS Score
Published: May 13, 2024 at 07:01 PM UTC
Updated: June 17, 2026 at 07:33 AM UTC
1 product affected across 1 vendorGZCTF

Using GZCTF by GZTimeWalker?

Get instant alerts when new vulnerabilities affect GZCTF - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

GZ::CTF is a capture the flag platform. Prior to 0.20.1, unprivileged user can perform cross-site scripting attacks on other users by constructing malicious team names. This problem has been fixed in `v0.20.1`.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.20.1
Affected range stops below 0.20.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMGitHub_M
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-80

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card