CVE-2022-23518: debian debian_linux Cross-site Scripting
CVSS: 6.1v3.0MediumModified
AliasesUBUNTU-CVE-2022-23518DEBIAN-CVE-2022-23518GHSA-mcvf-2q2m-x72m
Published 14-12-2022Last modified 03-11-2025
Vulnerability summary
CVE-2022-23518 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in debian debian_linux. EPSS estimates a 0.92% chance of exploitation in the next 30 days, higher than 59.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.1/10
010
Medium · v3.0 (CVE.org)EPSS score
0.92%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 14-12-2022PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Versions >= 1.0.3, < 1.4.4 are vulnerable to cross-site scripting via data URIs when used in combination with Loofah >= 2.1.0. This issue is patched in version 1.4.4.
CVSS metrics
7 scores · 5 sources · 2 versionsMedium 6.1Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 4 agree
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · RubygemsEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 6.1Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVDNIST6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.92%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
+0.06 pp
From 0.87% on 19-09-2026
19-09-202619-10-2026
EPSS score0.92%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundRails Html Sanitizer
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- ruby-rails-html-sanitizer< 1.4.4-1
- debian_linuxEOL10.0
Loofah_project1 product
- loofah≥ 2.1.0, < 2.19.1
Rails1 product
- rails-html-sanitizer≥ 1.0.3, < 1.4.4
RubyGems1 product
- rails-html-sanitizer≥ 1.0.3, < 1.4.4
Rubyonrails1 product
- rails_html_sanitizers≥ 1.0.3, < 1.4.4
Ubuntu1 product
- ruby-rails-html-sanitizerAll versions (No fix recorded)
6 vendors · 7 products
References
12 links- github.com/rails/rails-html-sanitizer/security/advisories/GHSA-mcvf-2q2m-x72mX Refsource CONFIRMREPORTWEBThird Party Advisory
- github.com/rails/rails-html-sanitizer/issues/135X Refsource MISCREPORTWEBExploitIssue TrackingThird Party Advisory
