What is CVE-2026-11875?

CVE-2026-11875 is a medium-severity vulnerability in Wp Support Plus Responsive Ticket System, classified under CWE-639 AUTHORIZATION BYPASS THROUGH USER-CONTROLLED KEY. CVSS score: 5.3/10. Published 2026-07-09.

How severe is CVE-2026-11875?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Wp Support Plus Responsive Ticket System

CVE-2026-11875

The WP Support Plus Responsive Ticket System WordPress plugin through 9.1.2 does not sign or verify its guest-session cookie, allowing unauthenticated attackers to forge it and impersonate any ticket owner (identified by email address) to read, reply to, and close that person's support tickets.

Published 2026-07-09 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.3th percentile), scored 2026-10-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Wp Support Plus Responsive Ticket System — versions 0

References

wpscan.com/vulnerability/1c69692e-5d0c-42cf-9b3d-b722f2ba4231/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-11875?: CVE-2026-11875 is a medium-severity vulnerability in Wp Support Plus Responsive Ticket System, classified under CWE-639 AUTHORIZATION BYPASS THROUGH USER-CONTROLLED KEY. CVSS score: 5.3/10. Published 2026-07-09.
How severe is CVE-2026-11875?: Medium severity. CVSS v3 base score is 5.3 out of 10.