WordPress security changelog
HIGH CVE-2020-26876 Modified

Wp Courses: A security weakness

Wp Courses is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 7.5 CVSS · cve@mitre.org
NVD score 7.5 CVSS 3.1 · nvd@nist.gov
Component
Wp Courses
Plugin slug
wp-courses
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 07, 2020
Weakness
CWE-306 — Missing Authentication for Critical Function

This CVE was published Oct 07, 2020 and is one of 2 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Wp Courses 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.

Source record

Technical description

The wp-courses plugin through 2.0.27 for WordPress allows remote attackers to bypass the intended payment step (for course videos and materials) by using the /wp-json REST API, as exploited in the wild in September 2020. This occurs because show_in_rest is enabled for custom post types (e.g., /wp-json/wp/v2/course and /wp-json/wp/v2/lesson exist).

NVD vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Primary and upstream sources