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CVE Record

CVE-2023-6223: LearnPress <= 4.2.5.7 - Insecure Direct Object Reference to Information Disclosure

The LearnPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.2.5.7 via the /wp-json/lp/v1/profile/course-tab REST API due to missing validation on the 'userID' user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve the details of another user's course progress.

MediumCVSS 4.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2023-6223 lets a logged-in low-privilege WordPress user view another LearnPress user's course progress details. It is an information disclosure issue, not a full site takeover. Business urgency is moderate where training records, learner status, or customer education data are sensitive.

Executive priority

Prioritize remediation during the next normal security maintenance window, sooner for public LMS sites with many untrusted users. This is a privacy and data exposure issue with limited technical impact, but it can affect trust and compliance obligations.

Technical view

LearnPress up to and including 4.2.5.7 has an IDOR in the /wp-json/lp/v1/profile/course-tab REST API. Missing validation of the user-controlled userID key lets authenticated subscriber-level users retrieve other users' course progress. The CVSS 3.1 score is 4.3: network exploitable, low privileges, no user interaction, confidentiality impact only.

Likely exposure

Exposure is limited to WordPress sites running LearnPress versions up to 4.2.5.7, especially sites with open registration, many students, or subscriber-level accounts. Unauthenticated visitors are not described as affected in the provided sources.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Abuse requires an authenticated account with subscriber-level access or higher. The practical risk is unauthorized visibility into another learner's progress data through the affected REST API behavior.

Researcher notes

This is CWE-639 authorization bypass through user-controlled object selection. The key control to validate is server-side authorization binding between the authenticated user and requested course-progress data. Evidence is limited to the CVE description, Wordfence reference, and WordPress plugin changeset.

Mitigation direction

  • Inventory WordPress sites using LearnPress and identify versions at or below 4.2.5.7.
  • Update LearnPress according to vendor or WordPress plugin guidance.
  • If immediate updating is unavailable, restrict untrusted account creation and review subscriber access.
  • Monitor for unusual authenticated REST API access involving LearnPress profile or course-progress data.
  • Check Wordfence and plugin changelog references before declaring remediation complete.

Validation and detection

  • Confirm installed LearnPress versions across production, staging, and backups.
  • Review WordPress plugin changelog around changeset 3013957 for the relevant fix.
  • Use authorized test accounts to confirm cross-user course progress is no longer accessible.
  • Verify no public registration or low-trust subscriber population remains unnecessarily enabled.
  • Document whether learner progress data is regulated, contractual, or privacy-sensitive.
Prepared
Confidence
high
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-639: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-6223 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.3Medium
CVSS 3.1 vector shape for CVE-2023-6223Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
thimpressLearnPress – WordPress LMS Plugin for Create and Sell Online Courses0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-639 · source CWE mapping

Authorization Bypass Through User-Controlled Key

Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.