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PatchSiren cyber security CVE debrief

CVE-2026-48867 ExpressTech CVE debrief

A high-severity Unauthenticated Cross Site Scripting (XSS) vulnerability was discovered in Quiz And Survey Master plugin versions <= 11.1.2. This vulnerability, tracked as CVE-2026-48867, has a CVSS score of 7.1 and is considered HIGH severity. The vulnerability was made public on June 15, 2026.

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
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Administrators and users of the Quiz And Survey Master plugin, especially those using versions <= 11.1.2, should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability is an Unauthenticated Cross Site Scripting (XSS) issue in the Quiz And Survey Master plugin. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Defensive priority

HIGH

Recommended defensive actions

  • Update the Quiz And Survey Master plugin to a version greater than 11.1.2.
  • Review and implement additional security measures to protect against XSS attacks.

Evidence notes

The vulnerability was reported by Patchstack and is tracked as CVE-2026-48867.

Official resources

CVE-2026-48867 was made public on June 15, 2026, and has been modified on the same day.