CVE-2026-41243 Details
Description
OpenLearn is open-source educational forum software. Prior to commit 844b2a40a69d0c4911580fe501923f0b391313ab, when `safeMode` is enabled, unapproved forum posts are hidden from the public list, but the direct post-read procedure still returns the full post to anyone with the post UUID. Commit 844b2a40a69d0c4911580fe501923f0b391313ab fixes the issue.
A vulnerability in OpenLearn forum software prior to a specific commit allows unapproved forum posts to be accessed publicly through a direct post-read procedure, even when 'safeMode' is enabled. While the moderation feature hides pending posts from the public forum listing, the direct read function bypasses this restriction, exposing the full content of the post to anyone with the post UUID. This issue arises because the 'getSpecificPost' procedure does not apply the same moderation checks as the post listing flow, creating a straightforward policy bypass for users aware of the UUIDs of pending posts.
Users should update to the version of OpenLearn that includes the patch for this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/siemvk/OpenLearn/security/advisories/GHSA-4rv3-hfh6-vqvm | CISA-ADP | ExploitVendor Advisory |
| https://github.com/siemvk/OpenLearn/commit/844b2a40a69d0c4911580fe501923f0b391313ab | [email protected] | Patch |
| https://github.com/siemvk/OpenLearn/security/advisories/GHSA-4rv3-hfh6-vqvm | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| siemvk openlearn | < 2026-04-14 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Initial Analysis | [email protected] |
| Apr 23, 2026 | CVE Modified | CISA-ADP |
| Apr 23, 2026 | New CVE Received | [email protected] |