Medium severity · published Jul 27, 2026
CVE-2026-14820
Quiz And Survey Master < 11.1.3 - Unauthenticated User Enumeration and Password Oracle via Quiz Login
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
The Quiz and Survey Master (QSM) WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid usernames and to brute-force passwords while bypassing brute-force protection Quiz and Survey Master (QSM) WordPress plugin before 11.1.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% 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) ·
before 11.1.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-14820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-14820
wpscan.com
https://wpscan.com/vulnerability/22af8c73-8147-4205-8285-a35881f2d041/
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