CVE-2013-4891

Public Exploit

Description

The xss_clean function in CodeIgniter before 2.1.4 might allow remote attackers to bypass an intended protection mechanism and conduct cross-site scripting (XSS) attacks via an unclosed HTML tag.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.27%
Third-Party Advisory github.com Third-Party Advisory nealpoole.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://nealpoole.com/blog/2013/07/codeigniter-21-xss-clean-filter-bypass/ third party advisory exploit
https://github.com/bcit-ci/CodeIgniter/issues/4020 issue tracking third party advisory
https://www.codeigniter.com/userguide2/changelog.html release notes

Frequently Asked Questions

What is the severity of CVE-2013-4891?
CVE-2013-4891 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4891?
To fix CVE-2013-4891, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4891 being actively exploited in the wild?
It is possible that CVE-2013-4891 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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