Medium severity · published Dec 2, 2024
CVE-2024-53986
Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
6.1
CVSS
0.5%
EPSS
No
On KEV
Description
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags where the "math" and "style" elements are both explicitly allowed. This vulnerability is fixed in 1.6.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
rails-html-sanitizer · rails
>= 1.6.0, < 1.6.1 · source: vendor
RH
Rails Html Sanitizers · Rubyonrails
1.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-53986
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-53986
Patch
https://github.com/rails/rails-html-sanitizer/commit/f02ffbb8465e73920b6de0da940f5530f855965e
Vendor Advisory
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-638j-pmjw-jq48
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