UpHeron
All vulnerabilities

WordPress core

CVE-2012-4421

The create_post function in wp-includes/class-wp-atom-server.php in WordPress before 3.4.2 does not perform a capability check, which allows remote authenticated users to bypass intended access restrictions and publish new posts by leveraging the Contributor role and using the Atom Publishing Protocol (aka AtomPub) feature.

Severity
Medium 4.0
Published
14 Sept 2012
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • Version 3.4.0
  • Version 3.3.3
  • Version 3.3.2
  • Version 3.3.1
All 87 release lines
  • Every version up to 3.4.1
  • Version 0.71
  • Version 1.0
  • Version 1.0.1
  • Version 1.0.2
  • Version 1.1.1
  • Version 1.2
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5-a
  • Version 1.2.5
  • Version 1.3
  • Version 1.3.2
  • Version 1.3.3
  • Version 1.5
  • Version 1.5.1
  • Version 1.5.1.1
  • Version 1.5.1.2
  • Version 1.5.1.3
  • Version 1.5.2
  • Version 2.0
  • Version 2.0.1
  • Version 2.0.2
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.0.6
  • Version 2.0.7
  • Version 2.0.8
  • Version 2.0.9
  • Version 2.0.10
  • Version 2.0.11
  • Version 2.1
  • Version 2.1.1
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.2
  • Version 2.2.1
  • Version 2.2.2
  • Version 2.2.3
  • Version 2.3
  • Version 2.3.1
  • Version 2.3.2
  • Version 2.3.3
  • Version 2.5
  • Version 2.5.1
  • Version 2.6
  • Version 2.6.1
  • Version 2.6.2
  • Version 2.6.3
  • Version 2.6.5
  • Version 2.7
  • Version 2.7.1
  • Version 2.8
  • Version 2.8.1
  • Version 2.8.2
  • Version 2.8.3
  • Version 2.8.4-a
  • Version 2.8.4
  • Version 2.8.5
  • Version 2.8.5.1
  • Version 2.8.5.2
  • Version 2.8.6
  • Version 2.9
  • Version 2.9.1
  • Version 2.9.1.1
  • Version 2.9.2
  • Version 3.0
  • Version 3.0.1
  • Version 3.0.2
  • Version 3.0.3
  • Version 3.0.4
  • Version 3.0.5
  • Version 3.0.6
  • Version 3.1
  • Version 3.1.1
  • Version 3.1.2
  • Version 3.1.3
  • Version 3.1.4
  • Version 3.2
  • Version 3.2.1
  • Version 3.3
  • Version 3.3.1
  • Version 3.3.2
  • Version 3.3.3
  • Version 3.4.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-4421
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-4421