Vulnerability · Published Oct 9, 2026 · Assigned by Patchstack
CVE-2026-104392WordPress Quiz And Survey Master plugin <= 11.2.7 - PHP Object Injection vulnerability
High 8.8
In plain English
A high-severity unsafe deserialization in Quiz And Survey Master from ExpressTech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 79.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Deserialization of Untrusted Data vulnerability in ExpressTech Quiz And Survey Master quiz-master-next allows Object Injection.This issue affects Quiz And Survey Master: from n/a through 11.2.7.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ExpressTech | Quiz And Survey Master | 0 – through 11.2.7 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H