CVE-2013-0731

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-03-22 · updated 2026-06-16
Weakness: CWE-264

Description

ajax.functions.php in the MailUp plugin before 1.3.3 for WordPress does not properly restrict access to unspecified Ajax functions, which allows remote attackers to modify plugin settings and conduct cross-site scripting (XSS) attacks by setting the wordpress_logged_in cookie. NOTE: this is due to an incomplete fix for a similar issue that was fixed in 1.3.2.

Affected products

Mailup Wp-Mailup: through 1.3.2; 1.0.0, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2 (+3)

References

http://osvdb.org/91274
http://plugins.trac.wordpress.org/changeset?new=682420
http://secunia.com/advisories/51917
http://wordpress.org/extend/plugins/wp-mailup/changelog/
http://www.securityfocus.com/bid/58467
https://exchange.xforce.ibmcloud.com/vulnerabilities/82847
http://osvdb.org/91274
http://plugins.trac.wordpress.org/changeset?new=682420
http://secunia.com/advisories/51917
http://wordpress.org/extend/plugins/wp-mailup/changelog/
http://www.securityfocus.com/bid/58467
https://exchange.xforce.ibmcloud.com/vulnerabilities/82847

Get alerted when CVE-2013-0731 or the next vulnerability affects your stack