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PatchSiren cyber security CVE debrief

CVE-2026-105888 Liquid Web / StellarWP CVE debrief

The CVE-2026-105888 vulnerability affects the WordPress Event Tickets plugin, specifically versions up to 5.30.0.1. This issue is related to a Missing Authorization vulnerability, which allows for Exploiting Incorrectly Configured Access Control Security Levels. The CVSS score for this vulnerability is 5.4, indicating a medium severity level. Defenders responsible for WordPress installations with the Event Tickets plugin should assess their exposure and verify the plugin version in use. The vulnerability allows unauthorized access due to misconfigured security levels. To address this issue, defenders need to verify the version of the Event Tickets plugin to ensure it is not 5.30.0.

Vendor
Liquid Web / StellarWP
Product
Event Tickets
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-08
Original CVE updated
2026-10-08
Advisory published
2026-10-08
Advisory updated
2026-10-08

Who should care

Defenders responsible for WordPress installations with the Event Tickets plugin should assess their exposure and verify the plugin version in use.

Why it matters

CVE-2026-105888 is a medium-severity vulnerability in the WordPress Event Tickets plugin that allows for unauthorized access due to misconfigured security levels. Defenders should verify the plugin version and review access control configurations.

  • Defenders need to verify the version of the Event Tickets plugin to ensure it is not vulnerable.
  • Reviewing access control configurations for the plugin is necessary to prevent unauthorized access.

Technical summary

The CVE-2026-105888 vulnerability is a Missing Authorization issue in the WordPress Event Tickets plugin, affecting versions up to 5.30.0.1. This allows for Exploiting Incorrectly Configured Access Control Security Levels, with a CVSS score of 5.4 indicating medium severity.

Defensive priority

Defenders should prioritize verifying the version of the Event Tickets plugin in use and ensuring it is updated to a version beyond 5.30.0.1 if possible. They should also review access control configurations for the plugin.

Recommended defensive actions

  • Verify the version of the Event Tickets plugin in use and update if necessary.
  • Review access control configurations for the plugin.
  • Monitor for unusual activity related to the Event Tickets plugin.

Evidence notes

The CVE record and source item provide details about the vulnerability in the Event Tickets plugin. However, there is limited information available regarding active exploitation or specific impacts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-105888 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-105888

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

  • CVE-2026-105888 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-105888

    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.