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CVE

CWE

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CVE-2022-23517

Published: Dec 14, 2022

Modified: Nov 3, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.

Vendor	Product	Versions
rails	rails-html-sanitizer	affected `< 1.4.4`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w

x_refsource_CONFIRM

https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979

x_refsource_MISC

https://hackerone.com/reports/1684163

x_refsource_MISC

https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html

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