CVE-2023-6567
HighExploitedLearnPress <= 4.2.5.7 - Unauthenticated SQL Injection via order_by
Published Jan 12, 2024 · Updated Apr 8, 2026 · Also known as 6ab578cd-3a0b-43d3-aaa7-0a01f431a4e2
Key Facts
Patch immediately- CVE-2023-6567 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Learnpress (Thimpress), LearnPress – WordPress LMS Plugin for Create and Sell Online Courses.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jun 8, 2025. No public exploit code is known.
- EPSS estimates a 51% probability of exploitation in the next 30 days.
- Fixed versions are available, including Learnpress 4.2.5.8.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
51%
Higher than 98.9% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
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Description
The LearnPress plugin for WordPress is vulnerable to time-based SQL Injection via the ‘order_by’ parameter in all versions up to, and including, 4.2.5.7 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jun 8, 2025 | n/a | Not reported |
| CIRCL KEV | Jun 27, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LearnpressThimpress | See advisory | 4.2.5.8 |
| LearnPress – WordPress LMS Plugin for Create and Sell Online Courses | See advisory | n/a |
Patched Releases
Learnpress
4.2.5.8
Timeline
Publicly disclosed
Jan 12, 2024
Added to Industry KEV feed
Jun 8, 2025
Last updated
Apr 8, 2026
Added to CIRCL KEV
Jun 27, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-7070
- advisoryhttps://plugins.trac.wordpress.org/browser/email-encoder-bundle/trunk/core/includes/classes/class-email-encoder-bundle-run.php#L518
- advisoryhttps://plugins.trac.wordpress.org/browser/email-encoder-bundle/trunk/core/includes/classes/class-email-encoder-bundle-run.php#L529
- advisoryhttps://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/TableOfContents.php#L138
- advisoryhttps://plugins.trac.wordpress.org/changeset/3013957/learnpress
FAQ
Common Questions.
The LearnPress plugin for WordPress is vulnerable to time-based SQL Injection via the ‘order_by’ parameter in all versions up to, and including, 4.2.5.7 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query.
Affected: Learnpress (Thimpress); LearnPress – WordPress LMS Plugin for Create and Sell Online Courses. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jun 8, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Learnpress 4.2.5.8.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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