The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to hijack and modify other users' quiz attempts by manipulating the chained_completion_id cookie value, allowing them to alter quiz answers, scores, and results of any user. The vulnerability was partially patched in versions 1.3.4 and 1.3.5.
History

Thu, 18 Sep 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 18 Sep 2025 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress

Thu, 18 Sep 2025 07:00:00 +0000

Type Values Removed Values Added
Description The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to hijack and modify other users' quiz attempts by manipulating the chained_completion_id cookie value, allowing them to alter quiz answers, scores, and results of any user. The vulnerability was partially patched in versions 1.3.4 and 1.3.5.
Title Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Object Reference via Cookie
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2025-09-18T06:49:45.112Z

Updated: 2025-09-18T14:03:36.463Z

Reserved: 2025-09-15T17:13:39.985Z

Link: CVE-2025-10493

cve-icon Vulnrichment

Updated: 2025-09-18T13:54:55.439Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-18T07:15:59.390

Modified: 2025-09-18T13:43:34.310

Link: CVE-2025-10493

cve-icon Redhat

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