Security readout for executives and security teams
Plain-English summary
jquery-validation before 1.19.5 can be forced into excessive processing when validating attacker-controlled input with the url2 method. The business impact is availability, not data theft: affected forms or services may slow down or stop responding under crafted input. The vendor patch is version 1.19.5.
Executive priority
Prioritize remediation for internet-facing forms or high-volume workflows using jquery-validation. The issue affects availability and has a vendor patch. It should be handled in normal high-severity patch cycles, faster where public unauthenticated input reaches url2.
Technical view
CVE-2022-31147 is a ReDoS flaw in jquery-validation url2 caused by an incomplete fix for CVE-2021-43306. Affected versions are below 1.19.5. The CVSS 3.1 score is 7.5, driven by network reachability, low complexity, no privileges, no user interaction, and high availability impact.
Likely exposure
Exposure is likely where applications include jquery-validation below 1.19.5 and accept untrusted input validated through url2. Check direct package dependencies, lockfiles, bundled frontend assets, and any vendored copies. The source bundle does not identify affected downstream products.
Exploitation context
The sources describe attacker-supplied arbitrary input to url2 causing ReDoS. CISA KEV status is false in the provided bundle, and no cited source states active exploitation. Treat this as exploitable in exposed validation paths, but do not assume known in-the-wild attacks from the evidence provided.
Researcher notes
Evidence is strongest for affected version range, vulnerable method, root cause, and patch version. The bundle does not provide exploit telemetry, downstream product mapping, or alternative mitigations. This is CWE-1333 regular expression inefficiency with availability impact only under the provided CVSS vector.
Mitigation direction
- Upgrade jquery-validation to version 1.19.5 or later.
- Review the GitHub advisory and 1.19.5 release notes before deployment.
- If upgrade is delayed, reduce exposure of workflows using url2 and follow vendor guidance.
- Retest form validation behavior after updating the plugin.
Validation and detection
- Inventory all jquery-validation versions in package manifests, lockfiles, and bundled assets.
- Identify code paths or forms that invoke the url2 validation method.
- Confirm whether untrusted users can submit input reaching url2 validation.
- Verify deployed assets are rebuilt and no older vendored copy remains.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1333: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-31147 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-ffmh-x56j-9rc3CVE reference · x_refsource_CONFIRM
- https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2f7f106c89522051a9fb0ddCVE reference · x_refsource_MISC
- https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Inefficient Regular Expression Complexity
Inefficient Regular Expression Complexity represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.