Search

Find a vulnerability

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

    1 vulnerability by siemvk

    CVE-2026-41243 (GCVE-0-2026-41243)

    Vulnerability from cvelistv5 – Published: 2026-04-23 00:09 – Updated: 2026-04-23 13:55
    VLAI
    Title
    OpenLearn's pending forum posts remain publicly readable by direct ID when moderation mode is enabled
    Summary
    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.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-284 - Improper Access Control
    Assigner
    References
    Impacted products
    Vendor Product Version
    siemvk OpenLearn Affected: < 844b2a40a69d0c4911580fe501923f0b391313ab
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-41243",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-23T13:54:48.062482Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-23T13:55:12.541Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/siemvk/OpenLearn/security/advisories/GHSA-4rv3-hfh6-vqvm"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenLearn",
          "vendor": "siemvk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 844b2a40a69d0c4911580fe501923f0b391313ab"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-23T00:09:03.863Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/siemvk/OpenLearn/security/advisories/GHSA-4rv3-hfh6-vqvm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/siemvk/OpenLearn/security/advisories/GHSA-4rv3-hfh6-vqvm"
        },
        {
          "name": "https://github.com/siemvk/OpenLearn/commit/844b2a40a69d0c4911580fe501923f0b391313ab",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/siemvk/OpenLearn/commit/844b2a40a69d0c4911580fe501923f0b391313ab"
        }
      ],
      "source": {
        "advisory": "GHSA-4rv3-hfh6-vqvm",
        "discovery": "UNKNOWN"
      },
      "title": "OpenLearn\u0027s pending forum posts remain publicly readable by direct ID when moderation mode is enabled"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-41243",
    "datePublished": "2026-04-23T00:09:03.863Z",
    "dateReserved": "2026-04-18T03:47:03.135Z",
    "dateUpdated": "2026-04-23T13:55:12.541Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}