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PatchSiren cyber security CVE debrief

CVE-2026-2827 100plugins CVE debrief

The Open User Map PRO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'oum_location_notification' parameter in versions up to, and including, 1.4.31 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vendor
100plugins
Product
Open User Map PRO
CVSS
MEDIUM 4.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of the Open User Map PRO plugin for WordPress, particularly those with versions up to and including 1.4.31, should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability exists in the Open User Map PRO plugin for WordPress, specifically in the 'oum_location_notification' parameter. The plugin fails to properly sanitize input and escape output, allowing unauthenticated attackers to inject malicious scripts.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update the Open User Map PRO plugin to a version beyond 1.4.31.
  • Implement additional security measures such as Web Application Firewall (WAF) rules to detect and prevent cross-site scripting attacks.

Evidence notes

The CVE-2026-2827 record and associated details were obtained from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-2827 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-2827

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

  • CVE-2026-2827 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-2827

    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.