AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-21248

CRITICAL · CVSS 9.6 EPSS 1.45% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-01-15 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.6. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-21248
Severity
CRITICAL
CVSS
9.6
EPSS
1.45%

Original NVD Description

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability involving the build endpoint parameters. InputSpec is used to define parameters of a Build spec. It does so by using dynamically generated Groovy classes. A user able to control job parameters can run arbitrary code on OneDev's server by injecting arbitrary Groovy code. The ultimate result is in the injection of a static constructor that will run arbitrary code. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by escaping special characters such as quote from user input.

Related CVEs

Other vulnerabilities affecting the same vendor(s)