CVE-2026-1655
Received Received - Intake
Unauthorized Post Modification in EventPrime WordPress Plugin

Publication date: 2026-02-18

Last updated on: 2026-02-18

Assigner: Wordfence

Description
The EventPrime plugin for WordPress is vulnerable to unauthorized post modification due to missing authorization checks in all versions up to, and including, 4.2.8.4. This is due to the save_frontend_event_submission function accepting a user-controlled event_id parameter and updating the corresponding event post without enforcing ownership or capability checks. This makes it possible for authenticated (Customer+) attackers to modify posts created by administrators by manipulating the event_id parameter granted they can obtain a valid nonce.
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Meta Information
Published
2026-02-18
Last Modified
2026-02-18
Generated
2026-06-16
AI Q&A
2026-02-18
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1655
EUVD
EUVD-2026-8054
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
eventprime eventprime to 4.2.8.4 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

The EventPrime plugin for WordPress has a vulnerability that allows unauthorized modification of posts. This happens because the function save_frontend_event_submission accepts a user-controlled event_id parameter and updates the corresponding event post without checking if the user owns the post or has the right permissions.

As a result, authenticated users with Customer+ privileges can modify posts created by administrators by manipulating the event_id parameter, provided they have a valid nonce.

Impact Analysis

This vulnerability can allow attackers with certain authenticated access to modify event posts they should not have control over, including those created by administrators.

Such unauthorized modifications could lead to misinformation, defacement, or manipulation of event data on a WordPress site using the EventPrime plugin.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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