#VU64913 Incorrect Regular Expression in jquery-validation - CVE-2022-31147

Vulnerability identifier: #VU64913

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-31147

CWE-ID: CWE-185

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jquery-validation
Web applications / JS libraries

Vendor: jquery-validation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation when processing untrusted input within a regular expression. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDoS) attack.

Note, the vulnerability exists due to incomplete fix for #VU63477 (CVE-2021-43306).

Mitigation
Install updates from vendor's website.

Vulnerable software versions

jquery-validation: 1.6.0 - 1.19.4

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External links
https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5
https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2f7f106c89522051a9fb0dd
https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-ffmh-x56j-9rc3

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.