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PatchSiren cyber security CVE debrief

CVE-2026-40787 ExpressTech CVE debrief

CVE-2026-40787 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability affecting Quiz And Survey Master versions up to 11.0.0. Defenders should assess exposure, prioritize remediation, and verify vendor-provided fixes.

Vendor
ExpressTech
Product
Quiz And Survey Master
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-10-25
Advisory published
2026-06-15
Advisory updated
2026-10-25

Who should care

Defenders responsible for Quiz And Survey Master deployments should assess exposure and prioritize remediation to prevent potential XSS attacks.

Why it matters

CVE-2026-40787 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability affecting Quiz And Survey Master versions up to 11.0.0. Defenders should assess exposure, prioritize remediation, and verify vendor-provided fixes to prevent potential XSS attacks.

  • Defenders must verify exposure in Quiz And Survey Master deployments to prevent potential XSS attacks.
  • Remediation priority is high due to the unauthenticated nature of the vulnerability.
  • Defenders should assess the impact of potential XSS attacks on Quiz And Survey Master deployments.
  • Verification of vendor-provided patches or mitigations is necessary to ensure remediation.

Technical summary

CVE-2026-40787 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability affecting Quiz And Survey Master versions up to 11.0.0. The vulnerability has a CVSS score of 7.1 and is classified as HIGH.

Defensive priority

Defenders should prioritize verifying exposure in Quiz And Survey Master deployments, assessing the impact of potential XSS attacks, and applying vendor-provided patches or mitigations.

Recommended defensive actions

  • Verify Quiz And Survey Master version and assess exposure
  • Prioritize remediation for affected deployments
  • Monitor for potential XSS attacks
  • Apply vendor-provided patches or mitigations

Evidence notes

The CVE record and NVD entry provide limited information about affected versions, exploitation, and remediation. Further verification is required to determine the full scope of the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40787 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40787

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40787 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40787

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.