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actionpack Cross-site Scripting vulnerability

Moderate severity GitHub Reviewed Published Oct 24, 2017 to the GitHub Advisory Database • Updated Aug 25, 2023

Package

bundler actionpack (RubyGems)

Affected versions

< 2.3.18
>= 3.0.0, < 3.1.12
>= 3.2.0, < 3.2.13

Patched versions

2.3.18
3.1.12
3.2.13

Description

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.

References

Published by the National Vulnerability Database Mar 19, 2013
Published to the GitHub Advisory Database Oct 24, 2017
Reviewed Jun 16, 2020
Last updated Aug 25, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(67th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2013-1855

GHSA ID

GHSA-q759-hwvc-m3jg

Source code

No known source code
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