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PatchSiren cyber security CVE debrief

CVE-2026-107427 NOUS Ouvert Utile et Simple CVE debrief

The CVE-2026-107427 vulnerability affects the WordPress Event post plugin, versions up to and including 6.1.1. This Insecure Direct Object References (IDOR) vulnerability allows for authorization bypass through user-controlled keys. The issue has been addressed in version 6.1.2. Defenders should assess their exposure to this vulnerability and prioritize updating to version 6.1.2 or later. The vulnerability has a CVSS score of 6.5 and a severity rating of MEDIUM. The CVE Program and NVD records provide details on the vulnerability. The affected product is the Event post plugin by NOUS Ouvert Utile et Simple.

Vendor
NOUS Ouvert Utile et Simple
Product
Event post
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-12
Original CVE updated
2026-10-12
Advisory published
2026-10-12
Advisory updated
2026-10-12

Who should care

Defenders responsible for WordPress installations, especially those using the Event post plugin, should assess their exposure to this vulnerability and prioritize updating to version 6.1.2 or later.

Why it matters

CVE-2026-107427 is a MEDIUM-severity vulnerability in the WordPress Event post plugin that requires attention from defenders to prevent potential security breaches.

  • Defenders need to verify their inventory and assess exposure to ensure no unauthorized access occurs.
  • Updating to version 6.1.2 or later is crucial to prevent potential security breaches.
  • Monitoring for exploitation attempts is necessary to detect potential attacks.

Technical summary

The CVE-2026-107427 vulnerability is an Insecure Direct Object References (IDOR) issue affecting the WordPress Event post plugin, versions up to and including 6.1.1. This vulnerability allows for authorization bypass through user-controlled keys, potentially leading to security issues. The CVSS score for this vulnerability is 6.5, with a severity rating of MEDIUM.

Defensive priority

Defenders should prioritize verifying their inventory of WordPress installations and assessing exposure to this vulnerability, especially in environments where the Event post plugin is used.

Recommended defensive actions

  • Verify inventory of WordPress installations and assess exposure to CVE-2026-107427
  • Update the Event post plugin to version 6.1.2 or later
  • Monitor for potential exploitation attempts

Evidence notes

The CVE Program and NVD records provide details on the vulnerability, including its CVSS score of 6.5 and severity of MEDIUM. The affected product is the Event post plugin by NOUS Ouvert Utile et Simple, with versions up to 6.1.1 being vulnerable.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-107427 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-107427

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

  • CVE-2026-107427 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-107427

    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.