Vulnerability in User Submitted Posts

CVE-2026-11570

The User Submitted Posts WordPress plugin before 20260608 does not escape a submitted value before outputting it in an admin-configured display template, leading to a Stored Cross-Site Scripting that can be triggered by unauthenticated users when a non-default display option is enabled.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-11570: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • User Submitted Posts — versions 0

References

Frequently asked questions

What is CVE-2026-11570?
CVE-2026-11570 is a medium-severity vulnerability in User Submitted Posts, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.2/10. Published 2026-07-01.
How severe is CVE-2026-11570?
Medium severity. CVSS v3 base score is 4.2 out of 10.