XSS in Contrid Newsletters

CVE-2026-12938

The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'target' attribute of the [newsletters_post] shortcode in versions up to and including 4.15. This is due to insufficient input sanitization and…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-12938?
CVE-2026-12938 is a medium-severity vulnerability in Contrid Newsletters, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-07-29.
How severe is CVE-2026-12938?
Medium severity. CVSS v3 base score is 6.4 out of 10.