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CVE-2024-53987

Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0

Published: Dec 2, 2024Updated: Aug 15, 2025 Sources: CVE List NVD GHSA BDUCWE-79
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.4%
Top 66.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 "style" element is explicitly allowed and the "svg" or "math" element is not allowed. This vulnerability is fixed in 1.6.1.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Rails Html SanitizerRails Core Team
Library
OSS Libraries / web-framework
rails-html-sanitizerrails
Library
OSS Libraries / web-framework
rails html sanitizersrubyonrailsOSS Libraries
rails-html-sanitizerRubyGemsOSS Libraries
ооо «ред софт»commercialRUOperating Systemsaka red soft
rails core teamoss-projectOSS Librariesaka rubyonrails, rails, actionview, rack? no
railsoss-projectOSS Librariesaka rails-html-sanitizer, activestorage
rubyonrailsoss-projectUSOSS Librariesaka rails, ruby on rails, rubyonrails.org
rubygemspackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://redos.red-soft.ru/support/secure/
redos.red-soft.ru
https://github.com/rails/rails-html-sanitizer/commit/f02ffbb8465e73920b6de0da940f5530f855965e
github.com
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-2x5m-9ch4-qgrr
github.com
and 4 more references View all →

Timeline

Published
Dec 2, 2024
Last Updated
Aug 15, 2025

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