Cyber Resilience

CVE-2023-6567

Critical

Published: 11 January 2024

Published
11 January 2024
Modified
08 April 2026
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.8226 99.2th percentile
Risk Priority 69 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-6567 is a critical-severity SQL Injection (CWE-89) vulnerability in Thimpress Learnpress. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

The LearnPress plugin for WordPress is vulnerable to time-based SQL injection via the order_by parameter in all versions through 4.2.5.7. The flaw stems from insufficient escaping of user-supplied input and missing prepared-statement handling in an existing SQL query, allowing an attacker to alter query logic and retrieve arbitrary database contents.

Unauthenticated remote attackers can exploit the issue over the network by supplying a crafted order_by value in plugin requests. Successful exploitation yields full read access to sensitive database information and, given the CVSS 9.8 rating, can also lead to modification or deletion of data.

The referenced Wordfence advisory and WordPress plugin changeset 3013957 document the fix; site operators should apply the patched version of LearnPress immediately and verify that the order_by parameter is no longer processed without proper sanitization. The associated EPSS score remains elevated near 0.82–0.84.

EU & UK References

Vulnerability details

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…

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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.

CWE(s)
CWE-89

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

thimpress
learnpress
≤ 4.2.5.8

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References