CVE-2014-5241

Public Exploit

Description

The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and obtain sensitive information, via a crafted OBJECT element with SWF content consistent with a restricted character set.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.33%
Vendor Advisory debian.org Vendor Advisory mandriva.com Vendor Advisory wikimedia.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-July/000157.html mailing list
http://www.debian.org/security/2014/dsa-3011 vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2014:153 vendor advisory
http://secunia.com/advisories/59738 third party advisory
https://bugzilla.wikimedia.org/show_bug.cgi?id=68187 patch vendor advisory exploit
http://openwall.com/lists/oss-security/2014/08/14/5 mailing list
http://advisories.mageia.org/MGASA-2014-0309.html

Frequently Asked Questions

What is the severity of CVE-2014-5241?
CVE-2014-5241 has been scored as a medium severity vulnerability.
How to fix CVE-2014-5241?
To fix CVE-2014-5241, 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-2014-5241 being actively exploited in the wild?
It is possible that CVE-2014-5241 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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