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PatchSiren cyber security CVE debrief

CVE-2026-112868 H5P CVE debrief

The CVE-2026-112868 vulnerability is an Insecure Direct Object References (IDOR) issue in the WordPress H5P plugin versions up to 1.17.9. This vulnerability allows for authorization bypass through user-controlled keys, potentially leading to security level exploitation. The CVSS score for this vulnerability is 4.3, indicating a medium severity level.

Vendor
H5P
Product
Unknown
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-21
Original CVE updated
2026-10-22
Advisory published
2026-10-21
Advisory updated
2026-10-22

Who should care

Defenders responsible for WordPress installations using the H5P plugin should assess exposure and prioritize verification and updates. They must also consider platform-specific mitigations, ensure vulnerability management processes are in place, and inform security teams about potential risks.

Why it matters

The CVE-2026-112868 vulnerability is an Insecure Direct Object References (IDOR) issue in the WordPress H5P plugin versions up to 1.17.9, allowing for authorization bypass through user-controlled keys.

  • Defenders need to verify and update the H5P plugin to version 1.17.10 or later
  • Assess exposure in systems using the H5P plugin
  • Monitor for potential security level exploitation

Technical summary

The CVE-2026-112868 vulnerability is an Insecure Direct Object References (IDOR) issue in the WordPress H5P plugin versions up to 1.17.9. This vulnerability allows for authorization bypass through user-controlled keys, potentially leading to security level exploitation. The CVSS score for this vulnerability is 4.3, indicating a medium severity level.

Defensive priority

Defenders should prioritize verifying and updating the H5P plugin to version 1.17.10 or later, and assess exposure in their systems.

Recommended defensive actions

  • Verify and update the H5P plugin to version 1.17.10 or later
  • Assess exposure in systems using the H5P plugin
  • Monitor for potential security level exploitation

Evidence notes

The evidence for this vulnerability comes from the CVE Program record and the NVD vulnerability detail page. The CVE Program record provides official CVE metadata, while the NVD page offers a source-specific vulnerability assessment.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-112868 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-112868

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-112868 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-112868

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.