Medium severity · published Feb 21, 2018
CVE-2013-4891
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…
6.1
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Codeigniter · Codeigniter
before 2.1.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-4891
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-4891
Issue Tracking
https://github.com/bcit-ci/CodeIgniter/issues/4020
Exploit
https://nealpoole.com/blog/2013/07/codeigniter-21-xss-clean-filter-bypass/
Release Notes
https://www.codeigniter.com/userguide2/changelog.html
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