kbrain

CVE-2013-1855

MEDIUM · CVSS 4.3EPSS 2.6%EU EUVD

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.

Key facts

CVSS score
4.3 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-79
EPSS score
2.6% (86th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2017-0289)
Published
March 19, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-0289 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • redhat / enterprise linux
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails

and 113 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain