CVE-2026-10623 json
PressPrimer Quiz <= 2.3.0 - Insecure Direct Object Reference to Authenticated (Custom+) Arbitrary Modification via 'quiz_id', 'item_id', and 'rule_id' Parameters
published 2026-06-18 4 mo ago modified 2026-06-18 4 mo ago also EUVD-2026-37845
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
The PressPrimer Quiz – AI Quiz Maker, Exam Builder & LMS Assessment Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.3.0 via the 'rule_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with custom-level access and above, to modify or delete quiz rules belonging to other teachers, resulting in unauthorized tampering of another user's quiz structure.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- pressprimer PressPrimer Quiz – AI Quiz Maker, Exam Builder & LMS Assessment Plugin
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
- Technology feeds
References
- github.com /PressPrimer/pressprimer-quiz/commit/1795687
- wordfence.com /threat-intel/vulnerabilities/id/150ac796-d77b-4915-8bbf-9f9b54be8eaf?source=cve
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1923
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1963
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1786
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1813
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1703
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L1860
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.2.2/includes/api/class-ppq-rest-controller.php#L434
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1923
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1963
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1786
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1813
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1703
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L1860
- plugins.trac.wordpress.org /browser/pressprimer-quiz/tags/2.1.0/includes/api/class-ppq-rest-controller.php#L434
Sources
- CVE List CVE-2026-10623
- NVD CVE-2026-10623
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.