EUVD-2026-74565
GHSA-wfw6-vjph-f3w6
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Ticket inventory exhaustion is a concrete availability impact warranting A:L; all other metrics match the provided vector given nonce leakage eliminates the PR requirement.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The WP Event Solution (Eventin) plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 4.1.22 via the create_item() handler for the /wp-json/eventin/v2/orders REST endpoint. The endpoint's create_item_permissions_check() function only verifies a wp_rest nonce (which is leaked to every visitor through the etn-public script's localized_data_obj on every frontend page) and accepts a user-supplied 'status' value in prepare_item_for_database() with no whitelist validation. This makes it possible for unauthenticated attackers to create etn-order posts with status='completed' that are counted as sold by etn_get_sold_tickets_by_event(); because the auto-cleanup wp_schedule_single_event() in create_item() only fires for status='pending' orders, the forged completed orders persist indefinitely and exhaust ticket inventory.
AnalysisAI
Ticket inventory exhaustion in WP Event Solution (Eventin) ≤4.1.22 allows any unauthenticated visitor to forge completed event orders and permanently lock out legitimate ticket buyers. The REST endpoint /wp-json/eventin/v2/orders relies solely on a wp_rest nonce for authorization, but that nonce is broadcast to every site visitor via the etn-public script's localized_data_obj - making the check functionally equivalent to no check at all. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the Eventin plugin (≤4.1.22) to be installed and active on a WordPress site with at least one event that has configured ticket inventory. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) accurately captures the network-accessible, zero-prerequisite attack vector but understates the availability dimension: indefinite ticket inventory exhaustion is a meaningful availability impact for event operators, not merely an integrity issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the Eventin plugin to the version immediately following 4.1.22; the fix is captured in WordPress SVN changeset 3668637 (https://plugins.trac.wordpress.org/changeset?reponame=&old=3668637%40wp-event-solution&new=3668637%40wp-event-solution), though a specific released version number is not independently confirmed from the available references - verify the current patched release via the WordPress plugin repository before updating. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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