CVE-2026-12956 json
Eventin <= 4.1.22 - Missing Authorization to Unauthenticated Arbitrary Order Creation and Status Manipulation via 'status' Parameter
published 2026-09-09 2 mo ago modified 2026-09-09 2 mo ago also EUVD-2026-74565
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- arraytics Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/5e87a9ac-e7c6-4622-b3e5-6e17e7664317?source=cve
- plugins.trac.wordpress.org /browser/wp-event-solution/tags/4.1.15/core/Order/OrderController.php#L1325
- plugins.trac.wordpress.org /browser/wp-event-solution/tags/4.1.15/core/Order/OrderController.php#L733
- plugins.trac.wordpress.org /browser/wp-event-solution/tags/4.1.15/core/Order/OrderController.php#L413
- plugins.trac.wordpress.org /browser/wp-event-solution/tags/4.1.15/utils/locale/vars.php#L35
- plugins.trac.wordpress.org /browser/wp-event-solution/tags/4.1.15/utils/helper.php#L4558
- plugins.trac.wordpress.org /changeset?reponame=&old=3668637%40wp-event-solution&new=3668637%40wp-event-solution
Sources
- CVE List CVE-2026-12956
- NVD CVE-2026-12956
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.