CVE-2022-31147 — The jQuery Validation Plugin (jquery-validation) provides drop-in validation for

The jQuery Validation Plugin (jquery-validation) provides drop-in validation for forms. Versions of jquery-validation prior to 1.19.5 are vulnerable to regular expression denial of service (ReDoS) when an attacker is able to supply arbitrary input to the url2 method. This is due

01What is this vulnerability?

The jQuery Validation Plugin (jquery-validation) provides drop-in validation for forms. Versions of jquery-validation prior to 1.19.5 are vulnerable to regular expression denial of service (ReDoS) when an attacker is able to supply arbitrary input to the url2 method. This is due to an incomplete fix for CVE-2021-43306. Users should upgrade to version 1.19.5 to receive a patch.

02Affected products

Vendor	Product	Versions
jquery-validation	jquery	validation — < 1.19.5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2022-07-14T19:30:14.000Z
• Last modified: 2025-04-23T18:02:09.780Z

09References

• github.com — https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-…
• github.com — https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2…
• github.com — https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5