CVE-2013-1857

The sanitize helper 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 encoded : (colon) characters in URLs, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted scheme name, as demonstrated by including a : sequence.

Published: 2013-03-19 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-1857 is rated Moderate Risk (45.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.85%). EPSS rose +1.23% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-1857

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.62% 1.85% +1.23%
2 2025-03-30 1.14% 0.62% -0.51%
3 2025-03-29 — 1.14% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-1857

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2013-1857

GitHub Security Advisory for CVE-2013-1857

GHSA-j838-vfpq-fmf2 · Severity: medium · Ecosystem: rubygems — actionpack Cross-site Scripting vulnerability

OS Trackers for CVE-2013-1857

vendor priority summary link
debian not yet assigned CVE-2013-1857 not yet assigned priority: Debian including 1 source packages (rails), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-1857
gentoo high CVE-2013-1857: 1 GLSA(s) (201412-28), 1 atom(s) (dev-ruby/rails); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-1857
redhat medium — https://access.redhat.com/security/cve/CVE-2013-1857
ubuntu medium CVE-2013-1857 medium priority: Ubuntu including 9 source packages (rails, ruby-actionpack-2.3, …), 162 status rows across 18 suites (artful, bionic, cosmic, hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 104, ignored 38, not-affected 14, needs-triage 5, released 1. https://ubuntu.com/security/CVE-2013-1857

Affected software / configurations for CVE-2013-1857

Vendor Product Version Raw CPE
redhat enterprise_linux 6.0 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
rubyonrails rails 0.9.1 cpe:2.3:a:rubyonrails:rails:0.9.1:*:*:*:*:*:*:*
rubyonrails rails 0.9.2 cpe:2.3:a:rubyonrails:rails:0.9.2:*:*:*:*:*:*:*
rubyonrails rails 0.9.3 cpe:2.3:a:rubyonrails:rails:0.9.3:*:*:*:*:*:*:*
rubyonrails rails 0.9.4 cpe:2.3:a:rubyonrails:rails:0.9.4:*:*:*:*:*:*:*
rubyonrails rails 0.9.4.1 cpe:2.3:a:rubyonrails:rails:0.9.4.1:*:*:*:*:*:*:*
rubyonrails rails 0.10.0 cpe:2.3:a:rubyonrails:rails:0.10.0:*:*:*:*:*:*:*
rubyonrails rails 0.10.1 cpe:2.3:a:rubyonrails:rails:0.10.1:*:*:*:*:*:*:*
rubyonrails rails 0.11.0 cpe:2.3:a:rubyonrails:rails:0.11.0:*:*:*:*:*:*:*
rubyonrails rails 0.11.1 cpe:2.3:a:rubyonrails:rails:0.11.1:*:*:*:*:*:*:*
rubyonrails rails 0.12.0 cpe:2.3:a:rubyonrails:rails:0.12.0:*:*:*:*:*:*:*
rubyonrails rails 0.12.1 cpe:2.3:a:rubyonrails:rails:0.12.1:*:*:*:*:*:*:*
rubyonrails rails 0.13.0 cpe:2.3:a:rubyonrails:rails:0.13.0:*:*:*:*:*:*:*
rubyonrails rails 0.13.1 cpe:2.3:a:rubyonrails:rails:0.13.1:*:*:*:*:*:*:*
rubyonrails rails 0.14.1 cpe:2.3:a:rubyonrails:rails:0.14.1:*:*:*:*:*:*:*
rubyonrails rails 0.14.2 cpe:2.3:a:rubyonrails:rails:0.14.2:*:*:*:*:*:*:*
rubyonrails rails 0.14.3 cpe:2.3:a:rubyonrails:rails:0.14.3:*:*:*:*:*:*:*
rubyonrails rails 0.14.4 cpe:2.3:a:rubyonrails:rails:0.14.4:*:*:*:*:*:*:*
rubyonrails rails 1.0.0 cpe:2.3:a:rubyonrails:rails:1.0.0:*:*:*:*:*:*:*
rubyonrails rails 1.1.0 cpe:2.3:a:rubyonrails:rails:1.1.0:*:*:*:*:*:*:*
rubyonrails rails 1.1.1 cpe:2.3:a:rubyonrails:rails:1.1.1:*:*:*:*:*:*:*
rubyonrails rails 1.1.2 cpe:2.3:a:rubyonrails:rails:1.1.2:*:*:*:*:*:*:*
rubyonrails rails 1.1.3 cpe:2.3:a:rubyonrails:rails:1.1.3:*:*:*:*:*:*:*
rubyonrails rails 1.1.4 cpe:2.3:a:rubyonrails:rails:1.1.4:*:*:*:*:*:*:*
rubyonrails rails 1.1.5 cpe:2.3:a:rubyonrails:rails:1.1.5:*:*:*:*:*:*:*
rubyonrails rails 1.1.6 cpe:2.3:a:rubyonrails:rails:1.1.6:*:*:*:*:*:*:*
rubyonrails rails 1.2.0 cpe:2.3:a:rubyonrails:rails:1.2.0:*:*:*:*:*:*:*
rubyonrails rails 1.2.1 cpe:2.3:a:rubyonrails:rails:1.2.1:*:*:*:*:*:*:*
rubyonrails rails 1.2.2 cpe:2.3:a:rubyonrails:rails:1.2.2:*:*:*:*:*:*:*
rubyonrails rails 1.2.3 cpe:2.3:a:rubyonrails:rails:1.2.3:*:*:*:*:*:*:*
rubyonrails rails 1.2.4 cpe:2.3:a:rubyonrails:rails:1.2.4:*:*:*:*:*:*:*
rubyonrails rails 1.2.5 cpe:2.3:a:rubyonrails:rails:1.2.5:*:*:*:*:*:*:*
rubyonrails rails 1.2.6 cpe:2.3:a:rubyonrails:rails:1.2.6:*:*:*:*:*:*:*
rubyonrails rails 1.9.5 cpe:2.3:a:rubyonrails:rails:1.9.5:*:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:rc1:*:*:*:*:*:*
rubyonrails rails 2.0.0 cpe:2.3:a:rubyonrails:rails:2.0.0:rc2:*:*:*:*:*:*
rubyonrails rails 2.0.1 cpe:2.3:a:rubyonrails:rails:2.0.1:*:*:*:*:*:*:*
rubyonrails rails 2.0.2 cpe:2.3:a:rubyonrails:rails:2.0.2:*:*:*:*:*:*:*
rubyonrails rails 2.0.4 cpe:2.3:a:rubyonrails:rails:2.0.4:*:*:*:*:*:*:*
rubyonrails rails 2.1.0 cpe:2.3:a:rubyonrails:rails:2.1.0:*:*:*:*:*:*:*
rubyonrails rails 2.1.1 cpe:2.3:a:rubyonrails:rails:2.1.1:*:*:*:*:*:*:*
rubyonrails rails 2.1.2 cpe:2.3:a:rubyonrails:rails:2.1.2:*:*:*:*:*:*:*
rubyonrails rails 2.2.0 cpe:2.3:a:rubyonrails:rails:2.2.0:*:*:*:*:*:*:*
rubyonrails rails 2.2.1 cpe:2.3:a:rubyonrails:rails:2.2.1:*:*:*:*:*:*:*
rubyonrails rails 2.2.2 cpe:2.3:a:rubyonrails:rails:2.2.2:*:*:*:*:*:*:*
rubyonrails rails 2.3.0 cpe:2.3:a:rubyonrails:rails:2.3.0:*:*:*:*:*:*:*
rubyonrails rails 2.3.1 cpe:2.3:a:rubyonrails:rails:2.3.1:*:*:*:*:*:*:*
rubyonrails rails 2.3.2 cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:*
rubyonrails rails 2.3.3 cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:*
rubyonrails rails 2.3.4 cpe:2.3:a:rubyonrails:rails:2.3.4:*:*:*:*:*:*:*
rubyonrails rails 2.3.9 cpe:2.3:a:rubyonrails:rails:2.3.9:*:*:*:*:*:*:*
rubyonrails rails 2.3.10 cpe:2.3:a:rubyonrails:rails:2.3.10:*:*:*:*:*:*:*
rubyonrails rails 2.3.11 cpe:2.3:a:rubyonrails:rails:2.3.11:*:*:*:*:*:*:*
rubyonrails rails 2.3.12 cpe:2.3:a:rubyonrails:rails:2.3.12:*:*:*:*:*:*:*
rubyonrails rails 2.3.13 cpe:2.3:a:rubyonrails:rails:2.3.13:*:*:*:*:*:*:*
rubyonrails rails 2.3.14 cpe:2.3:a:rubyonrails:rails:2.3.14:*:*:*:*:*:*:*
rubyonrails rails 2.3.15 cpe:2.3:a:rubyonrails:rails:2.3.15:*:*:*:*:*:*:*
rubyonrails rails 2.3.16 cpe:2.3:a:rubyonrails:rails:2.3.16:*:*:*:*:*:*:*
rubyonrails ruby_on_rails <= 2.3.17 cpe:2.3:a:rubyonrails:ruby_on_rails:*:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.6 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.6:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.5.7 cpe:2.3:a:rubyonrails:ruby_on_rails:0.5.7:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.6.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.6.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.6.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.6.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.7.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.7.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.8.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.8.0:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.8.5 cpe:2.3:a:rubyonrails:ruby_on_rails:0.8.5:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 0.9.0 cpe:2.3:a:rubyonrails:ruby_on_rails:0.9.0:*:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:*:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta2:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta3:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta4:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:rc:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.1 cpe:2.3:a:rubyonrails:rails:3.0.1:*:*:*:*:*:*:*
rubyonrails rails 3.0.1 cpe:2.3:a:rubyonrails:rails:3.0.1:pre:*:*:*:*:*:*
rubyonrails rails 3.0.2 cpe:2.3:a:rubyonrails:rails:3.0.2:*:*:*:*:*:*:*

References for CVE-2013-1857

cvelogic Threat Intelligence