CVE-2021-21252: jquery-validation Uncontrolled Resource Consumption
Vulnerability summary
CVE-2021-21252 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in jquery-validation. EPSS estimates a 3.57% chance of exploitation in the next 30 days, higher than 89.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 13-01-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 6 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · NpmEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · NugetEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.57%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
+0.14 pp
From 3.44% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- civicrmAll versions (No fix recorded)
- otrs2All versions (No fix recorded)
- phpmyadminAll versions (No fix recorded)
Debian1 product
- phpmyadmin< 4:5.0.4+dfsg2-2
Jquery-validation1 product
- jquery-validation< 1.19.3
Jqueryvalidation1 product
- jquery_validation< 1.19.3
Netapp1 product
Npm1 product
- jquery-validation< 1.19.3
NuGet1 product
- jQuery.Validation< 1.19.3
7 vendors · 9 products
References
16 links- github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwmREPORTWEBThird Party Advisory
- github.com/jquery-validation/jquery-validation/commit/5d8f29eef363d043a8fec4eb86d42cadb5fa5f7dWEBPatchThird Party Advisory
- security.netapp.com/advisory/ntap-20210219-0005/Third Party Advisory
