CVE-2026-0800
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2Description
The User Submitted Posts - Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom fields in all versions up to, and including, 20251210 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.
Analysis
Stored cross-site scripting in the User Submitted Posts WordPress plugin through version 20251210 allows unauthenticated attackers to inject malicious scripts via custom fields due to inadequate input sanitization. The injected scripts execute in the browsers of any user viewing affected pages, potentially compromising user sessions and data. …
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Remediation
Within 24 hours: Audit all WordPress installations for the User Submitted Posts plugin and document affected instances; disable the plugin on non-critical environments if feasible. Within 7 days: Implement WAF rules to filter malicious payloads in custom field submissions and review access logs for exploitation attempts. …
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