Vulnerability · Published Jun 15, 2026 · Assigned by Patchstack
CVE-2026-40787WordPress Quiz And Survey Master plugin <= 11.0.0 - Cross Site Scripting (XSS) vulnerability
High 7.1
In plain English
A high-severity cross-site scripting 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 0.2% (higher than 7% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated Cross Site Scripting (XSS) in Quiz And Survey Master <= 11.0.0 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ExpressTech | Quiz And Survey Master | n/a – through 11.0.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L