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CVE-2013-0731

MEDIUM · CVSS 5.0EPSS 2.6%EU EUVD

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.

Key facts

CVSS score
5.0 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-264
EPSS score
2.6% (85th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-0742)
Published
March 22, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-0742 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • mailup / wp-mailup
  • wordpress / wordpress

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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