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Case File

CVE-2021-21252

MEDIUM · CVSS 5.3 EPSS 3.44% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-01-13 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

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-2021-21252
Severity
MEDIUM
CVSS
5.3
EPSS
3.44%

Original NVD Description

The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package "jquery-validation". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.

Related CVEs

Other vulnerabilities affecting the same vendor(s)