Vulnerability in WordPress
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.019 (78.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- WordPress — versions 0.71, 1.0, 1.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openwall.com/lists/oss-security/2012/09/13/4 (mailing-list)
- core.trac.wordpress.org/changeset (Exploit, Patch)
- codex.wordpress.org/Version_3.4.2
Frequently asked questions
- What is CVE-2012-4421?
- CVE-2012-4421 is a vulnerability in WordPress, classified under CWE-264. Published 2012-09-14.
- Is CVE-2012-4421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.