CVE-2024-53988: rails rails-html-sanitizer Cross-site Scripting
Vulnerability summary
CVE-2024-53988 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in rails rails-html-sanitizer. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 02-12-2024PublishedVulnerability first disclosed.
- 03-12-2024Last modifiedVulnerability information updated.
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", "mtext", "table", and "style" elements are allowed and either either "mglyph" or "malignmark" are allowed. This vulnerability is fixed in 1.6.1.
CVSS metrics
6 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated2.3LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- OSV · RubygemsEcosystem advisory · calculated2.3LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- NVDNIST2.3LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Rails1 product
- rails-html-sanitizer≥ 1.6.0, < 1.6.1
RubyGems1 product
- rails-html-sanitizer≥ 1.6.0, < 1.6.1
Rubyonrails1 product
Ubuntu1 product
- ruby-rails-html-sanitizerAll versions (No fix recorded)
4 vendors · 4 products
References
7 links- github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cfjx-w229-hgx5X Refsource CONFIRMREPORTWEBVendor Advisory
- github.com/rails/rails-html-sanitizer/commit/a0a3e8b76b696446ffc6bffcff3bc7b7c6393c72X Refsource MISCREPORTWEBPatch
