WordPress Quiz And Survey Master plugin <= 11.0.0 - Cross Site Scripting (XSS) vulnerability
Priority LOW 30CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Unauthenticated Cross Site Scripting (XSS) in Quiz And Survey Master <= 11.0.0 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00175 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ExpressTech | Quiz And Survey Master | up to 11.0.0 | — | No fix listed | CNA |
- Quiz And Survey Master VendorExpressTech Affected up to 11.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40787
- 2026-10-03 Alias added: GHSA-c638-vf62-q5jh
More ExpressTech vulnerabilities
- TI-2020-18392 An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. CVSS 3.1CRITICAL 9.9
- TI-2024-05207 Quiz And Survey Master < 9.0.2 - Contributor+ SQLi CVSS 3.1HIGH 8.8
- TI-2024-05583 Quiz and Survey Master < 9.0.5 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.5
- TI-2024-09897 Quiz and Survey Master (QSM) < 9.2.1 - Author+ Stored XSS CVSS 3.1MEDIUM 6.1
- TI-2024-05932 Quiz and Survey Master (QSM) < 9.1.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.9
- TI-2024-04590 Quiz And Survey Master < 9.0.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.5
Sources
- CVE-2026-40787 · CVE Program
- CVE-2026-40787 · NVD
- FIRST EPSS
- GHSA-c638-vf62-q5jh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences