What is CVE-2021-21243?

CVE-2021-21243 is a critical-severity vulnerability in Theonedev Onedev, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 10.0/10. Published 2021-01-15.

How severe is CVE-2021-21243?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Theonedev Onedev

CVE-2021-21243

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kubernetes REST endpoint exposes two methods that deserialize untrusted data from the request body. These endpoints do not enforce any authentication or authorizati…

EPSS: 0.025 (85.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Theonedev Onedev — versions < 4.0.3

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

github.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fv (x_refsource_CONFIRM)
github.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21243?: CVE-2021-21243 is a critical-severity vulnerability in Theonedev Onedev, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 10.0/10. Published 2021-01-15.
How severe is CVE-2021-21243?: Critical severity. CVSS v3 base score is 10.0 out of 10.