What is CVE-2026-17522?

CVE-2026-17522 is a medium-severity vulnerability in Newsletters, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-08-29.

How severe is CVE-2026-17522?

Medium severity. CVSS v3 base score is 5.4 out of 10.

CSRF in Newsletters

CVE-2026-17522

The Newsletters WordPress plugin before 4.17 does not perform any nonce or capability check when saving one of its settings screens, and writes every submitted parameter into its own options, allowing attackers to make a logged in administrator overwrite arbitrary Newsletters WordPress plugin before 4.17 settings, including the credential protecting its API, via a Cross-Site Request Forgery attack.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.001 (0.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.

Affected products

Unknown Newsletters

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-17522?: CVE-2026-17522 is a medium-severity vulnerability in Newsletters, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-08-29.
How severe is CVE-2026-17522?: Medium severity. CVSS v3 base score is 5.4 out of 10.