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CVE-2012-4421

MEDIUM · CVSS 4.0EPSS 1.9%EU EUVD

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.

Key facts

CVSS score
4.0 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:L/Au:S/C:N/I:P/A:N
Weakness (CWE)
CWE-264
EPSS score
1.9% (80th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2012-4356)
Published
September 14, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4356 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress
  • wordpress / wordpress

and 37 more…

References

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

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