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Vulnerability details: VCID-9gqn-8g4t-wfby
Vulnerability ID VCID-9gqn-8g4t-wfby
Aliases CVE-2013-1855
GHSA-q759-hwvc-m3jg
OSV-91452
Summary actionpack Cross-site Scripting vulnerability The `sanitize_css` method in `lib/action_controller/vendor/html-scanner/html/sanitizer.rb` in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 does not properly handle `\n` (newline) characters, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html
generic_textual MODERATE http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html
generic_textual MODERATE http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2013-0698.html
generic_textual MODERATE http://rhn.redhat.com/errata/RHSA-2014-1863.html
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2013:0698
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2014:1863
generic_textual MODERATE https://access.redhat.com/security/cve/CVE-2013-1855
epss 0.00536 https://api.first.org/data/v1/epss?cve=CVE-2013-1855
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=921331
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-q759-hwvc-m3jg
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2013-1855.yml
generic_textual MODERATE https://groups.google.com/group/rubyonrails-security/msg/8ed835a97cdd1afd?dmode=source&output=gplain
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2013-1855
generic_textual MODERATE http://support.apple.com/kb/HT5784
generic_textual MODERATE https://web.archive.org/web/20130609174600/http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
generic_textual MODERATE https://web.archive.org/web/20131109010518/http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
generic_textual MODERATE http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released
Reference id Reference type URL
http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html
http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html
http://rhn.redhat.com/errata/RHSA-2013-0698.html
http://rhn.redhat.com/errata/RHSA-2014-1863.html
https://access.redhat.com/errata/RHSA-2013:0698
https://access.redhat.com/errata/RHSA-2014:1863
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2013-1855.json
https://access.redhat.com/security/cve/CVE-2013-1855
https://api.first.org/data/v1/epss?cve=CVE-2013-1855
https://bugzilla.redhat.com/show_bug.cgi?id=921331
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1855
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2013-1855.yml
https://groups.google.com/forum/?fromgroups=#!topic/rubyonrails-security/4_QHo4BqnN8
https://groups.google.com/group/rubyonrails-security/msg/8ed835a97cdd1afd?dmode=source&output=gplain
https://nvd.nist.gov/vuln/detail/CVE-2013-1855
http://support.apple.com/kb/HT5784
https://web.archive.org/web/20130609174600/http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
https://web.archive.org/web/20131109010518/http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released
http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released/
GHSA-q759-hwvc-m3jg https://github.com/advisories/GHSA-q759-hwvc-m3jg
GLSA-201412-28 https://security.gentoo.org/glsa/201412-28
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.67744
EPSS Score 0.00536
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T08:57:07.756655+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2017/10/GHSA-q759-hwvc-m3jg/GHSA-q759-hwvc-m3jg.json 38.6.0