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.
Official resources
CVE-2026-2827 was published on 2026-06-11T02:16:42.967Z and modified on 2026-06-11T14:42:47.007Z.