Medium severity · published Jun 5, 2026
CVE-2026-6448
Quiz and Survey Master (QSM) <= 11.1.2 - Authenticated (Admin+) SQL Injection via 'order' and 'limit' Parameters
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'order' parameter in all versions up to, and including, 11.1.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with admin-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. If the secret key is exposed, this can be exploited by lower-privileged users.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QA
Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker · expresstech
through 11.1.2 · source: vendor
Affected product
QA
Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
expresstech
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6448
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-quiz-api.php#L126
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-quiz-api.php#L131
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-quiz-api.php#L164
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-quiz-api.php#L243
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.3.5/php/classes/class-qsm-quiz-api.php#L374
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/quiz-master-next/trunk/php/classes/class-qsm-quiz-api.php#L126
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