Vulnerability in Rails Rails-Html-Sanitizer
CVE-2022-23517
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.015 (70.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rails Rails-html-sanitizer — versions < 1.4.4
- Rubyonrails Rails_html_sanitizers
- Debian Debian_linux — versions 10.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2022-23517?
- CVE-2022-23517 is a high-severity vulnerability in Rails Rails-Html-Sanitizer, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2022-12-14.
- How severe is CVE-2022-23517?
- High severity. CVSS v3 base score is 7.5 out of 10.