CVE-2026-84907

Eventin < 4.1.24 - Unauthenticated Order and Attendee Status Reset via Payment REST Endpoint

Published Sep 16, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Description
The Eventin WordPress plugin before 4.1.24 does not properly authorise order finalisation when its offline (local) payment method is enabled, relying on a nonce that is exposed to unauthenticated visitors and never checking that the caller owns the order, allowing unauthenticated attackers to reset any existing order and its attendees to a pending state and thereby invalidate paid tickets.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-862
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-284
CWE-307
Type Values Removed Values Added
First Time appeared Eventin
Eventin eventin
Wordpress
Wordpress wordpress
Vendors & Products Eventin
Eventin eventin
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description The Eventin WordPress plugin before 4.1.24 does not properly authorise order finalisation when its offline (local) payment method is enabled, relying on a nonce that is exposed to unauthenticated visitors and never checking that the caller owns the order, allowing unauthenticated attackers to reset any existing order and its attendees to a pending state and thereby invalidate paid tickets.
Title Eventin < 4.1.24 - Unauthenticated Order and Attendee Status Reset via Payment REST Endpoint
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 17, 2026, 12:37 PM
Reserved
Sep 2, 2026, 3:31 PM
Status
Deferred
Published
Sep 16, 2026, 6:16 AM
Modified
Sep 17, 2026, 1:16 PM