WordPress security changelog
CRITICAL CVE-2018-20979 Modified

Contact Form 7: Privilege escalation or authentication bypass

Contact Form 7 is affected by privilege escalation or authentication bypass. Exposure depends on how the affected operation is made reachable by the site. A successful request can grant permissions or access that the caller should not possess.

CVE / CNA score 9.8 CVSS · cve@mitre.org
NVD score 9.8 CVSS 3.0 · nvd@nist.gov
Component
Contact Form 7
Plugin slug
contact-form-7
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 22, 2019
Weakness
NVD-CWE-noinfo

This CVE was published Aug 22, 2019 and is one of 11 known issues for this plugin.

Update, patch or deactivate.

Update Contact Form 7 to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The contact-form-7 plugin before 5.0.4 for WordPress has privilege escalation because of capability_type mishandling in register_post_type.

NVD vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources