CVE-2022-31147 | jquery-validation ReDoS in url2 due to incomplete fix of CVE-2021-43306

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.

Published: 2022-07-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-31147 is rated Moderate Risk (55.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.56%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-31147

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-19 1.50% 1.56% +0.06%
2 2026-06-15 0.32% 1.50% +1.18%
3 2026-03-04 — 0.32% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-31147

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2022-31147

GitHub Security Advisory for CVE-2022-31147

GHSA-ffmh-x56j-9rc3 · Severity: high · Ecosystem: npm — jquery-validation Regular Expression Denial of Service due to arbitrary input to url2 method

OS Trackers for CVE-2022-31147

vendor priority summary link
debian unimportant CVE-2022-31147 unimportant priority: Debian including 1 source packages (node-jquery-validation), 2 status rows across 2 suites (forky, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2022-31147
ubuntu medium CVE-2022-31147 medium priority: Ubuntu including 3 source packages (civicrm, jquery, node-jquery), 40 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 18, DNE 15, needs-triage 5, ignored 2. https://ubuntu.com/security/CVE-2022-31147

Affected software / configurations for CVE-2022-31147

Vendor Product Version Raw CPE
jqueryvalidation jquery_validation < 1.19.5 cpe:2.3:a:jqueryvalidation:jquery_validation:*:*:*:*:*:node.js:*:*

References for CVE-2022-31147

cvelogic Threat Intelligence