Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
4DescriptionCVE.org
Missing Authorization vulnerability in EventPrime allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects EventPrime: from n/a through 4.2.8.3.
AnalysisAI
EventPrime versions through 4.2.8.3 contain an authorization bypass vulnerability that allows unauthenticated remote attackers to modify data through improperly configured access controls. The flaw enables integrity compromise without requiring authentication or user interaction, affecting all installations of the affected versions. No patch is currently available.
Technical ContextAI
This vulnerability affects EventPrime (CPE: cpe:2.3:a:eventprime:eventprime), a WordPress event calendar and management plugin. The root cause is classified as CWE-862 (Missing Authorization), which occurs when the software does not perform an authorization check when an actor attempts to access a resource or perform an action. In this case, the plugin fails to properly validate user permissions before allowing modifications to payment-related functionality, enabling attackers to manipulate payment flows without proper authentication. This represents a fundamental failure in implementing access control mechanisms at critical security boundaries within the WordPress plugin architecture.
RemediationAI
Upgrade EventPrime to a version newer than 4.2.8.3 that addresses this missing authorization vulnerability. Consult the Patchstack vulnerability report at https://patchstack.com/database/wordpress/plugin/eventprime-event-calendar-management/vulnerability/wordpress-eventprime-plugin-4-2-8-3-payment-bypass-vulnerability?_s_id=cve for specific patched version information and vendor guidance. Until patching is completed, consider temporarily disabling the EventPrime plugin if payment processing is not immediately critical, or implement web application firewall (WAF) rules to restrict access to payment-related endpoints to authenticated and authorized users only. Review server logs for any suspicious payment modification attempts targeting EventPrime functionality and validate the integrity of all existing payment records.
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-13061