CVE Catalog

CVE-2026-14820

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.22%

13th percentile - higher than 13% of all known CVEs

Summary

The Quiz and Survey Master (QSM) WordPress plugin before version 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality. It returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid usernames and brute-force passwords while bypassing brute-force protection.

Risk Assessment

An unauthenticated attacker can discover valid usernames and guess passwords, leading to account takeover.

Recommendation

Update the Quiz and Survey Master (QSM) plugin to version 11.1.3 or later.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS