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WordPress plugin

WP Courses <= 2.0.28 — Improper Access Controls

CVE-2020-26876Published · Updated

Action summary

Affected: ≤2.0.28Update to 2.0.29 or newer

All remediation steps
Watch plugin
Severity
High7.5
CVSS
7.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:N Integrity
None
A:N Availability
None
Weakness
CWE-284 Improper Access Control
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses wp-courses

  1. Affected≤ 2.0.28
  2. Patched in2.0.29

Update to 2.0.29 or newer.

You are affected if you run ≤ 2.0.28. Version 2.0.29 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 2.0.29, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Red Timmy.

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).

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses

All 8
More vulnerabilities in WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses
SeverityVulnerabilityCVEPublished
Medium4.3Insecure Direct Object Reference to Authenticated (Custom+) Sensitive Information Disclosure via 'resultID' Parameter
≤3.2.29Update to 3.2.30
CVE-2026-10630
Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting
≤3.2.26Update to 3.2.27
CVE-2026-31914
High7.5Missing Authorization to Authenticated (Subscriber+) Arbitrary User Meta Update
≤3.2.21Update to 3.2.22
CVE-2024-12172
Medium4.3Cross-Site Request Forgery
≤3.2.3Update to 3.2.4
—
High8.8Missing Authorization to Authenticated (Subscriber+) Arbitrary Options Update
≤3.2.3Update to 3.2.4
—

Timeline

  1. CVE published

    Severity high, CVSS 7.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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