The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'question_title' parameter in all versions up to, and including, 11.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Project Subscriptions

Vendors Products
Expresstech Subscribe
Quiz And Survey Master (qsm) – Easy Quiz And Survey Maker Subscribe
Wordpress Subscribe
Wordpress Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 17 Aug 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Expresstech
Expresstech quiz And Survey Master (qsm) – Easy Quiz And Survey Maker
Wordpress
Wordpress wordpress
Vendors & Products Expresstech
Expresstech quiz And Survey Master (qsm) – Easy Quiz And Survey Maker
Wordpress
Wordpress wordpress

Sun, 16 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
Description The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'question_title' parameter in all versions up to, and including, 11.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'question_title' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-08-18T19:26:28.266Z

Reserved: 2026-06-09T12:26:41.572Z

Link: CVE-2026-11780

cve-icon Vulnrichment

Updated: 2026-08-18T19:26:24.423Z

cve-icon NVD

Status : Deferred

Published: 2026-08-16T05:16:45.643

Modified: 2026-08-20T12:48:10.287

Link: CVE-2026-11780

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T10:30:08Z

Weaknesses