Is CVE-2013-0256 being actively exploited?

CVE-2013-0256 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-0256?

CVE-2013-0256 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2013-0256

MEDIUM · CVSS 4.3EPSS 3.0%EU EUVD

darkfish.js in RDoc 2.3.0 through 3.12 and 4.x before 4.0.0.preview2.1, as used in Ruby, does not properly generate documents, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL.

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: 3.0% (87th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2017-0308)
Published: March 1, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-0308 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
ruby-lang / rdoc
ruby-lang / rdoc
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby
ruby-lang / ruby

References

http://blog.segment7.net/2013/02/06/rdoc-xss-vulnerability-cve-2013-0256-releases-3-9-5-3-12-1-4-0-0-rc-2(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2013-02/msg00048.html(Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0548.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0686.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0701.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0728.html(Third Party Advisory)
http://secunia.com/advisories/52774(Third Party Advisory)
http://www.ruby-lang.org/en/news/2013/02/06/rdoc-xss-cve-2013-0256/(Vendor Advisory)
http://www.ubuntu.com/usn/USN-1733-1(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=907820(Issue Tracking)
https://github.com/rdoc/rdoc/commit/ffa87887ee0517793df7541629a470e331f9fe60(Third Party Advisory)

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