What’s Vulnerable › Vulnerabilities

CVE-2024-34699: GZ::CTF allows unprivileged user can perform XSS attacks by constructing malicious team names.

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-06-17
• Weakness: CWE-79

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 products

• GZTimeWalker GZCTF: before 0.20.1

References

• https://github.com/GZTimeWalker/GZCTF/commit/31e775b65cddf82a567d68dcdc78c1739b746346
• https://github.com/GZTimeWalker/GZCTF/security/advisories/GHSA-p6rq-5x3x-rmhh
• https://github.com/GZTimeWalker/GZCTF/commit/31e775b65cddf82a567d68dcdc78c1739b746346
• https://github.com/GZTimeWalker/GZCTF/security/advisories/GHSA-p6rq-5x3x-rmhh

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