Inefficient regular expression complexity in Wagtail

1) Inefficient regular expression complexity

EUVDB-ID: #VU94376

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-39317

CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions within parse_query_string. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

wagtail: 5.2 rc1 - 6.1.2

CPE2.3

• cpe:2.3:a:torchbox:wagtail:5.2:rc1:*:*:*:django:*:*
• cpe:2.3:a:torchbox:wagtail:5.2:*:*:*:*:django:*:*
• cpe:2.3:a:torchbox:wagtail:5.2.1:*:*:*:*:django:*:*

External links

https://github.com/wagtail/wagtail/security/advisories/GHSA-jmp3-39vp-fwg8
https://github.com/wagtail/wagtail/commit/31b1e8532dfb1b70d8d37d22aff9cbde9109cdf2
https://github.com/wagtail/wagtail/commit/3c941136f79c48446e3858df46e5b668d7f83797
https://github.com/wagtail/wagtail/commit/b783c096b6d4fd2cfc05f9137a0be288850e99a2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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