CVE-2026-78146

Noptin < 4.3.3 - Unauthenticated Subscriber PII and confirm_key Disclosure via Actions Page

The Simple Newsletter Plugin WordPress plugin before 4.3.3 does not verify that the requester is the subscriber named in a public request before rendering that subscriber's stored details, allowing unauthenticated users to disclose a subscriber's personal data along with the key that authorises changes to their record.

Affected

Simple Newsletter Plugin

CVSS v3.1 CNA

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 21st percentile

Published

2026-08-26

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/dd6e7f9c-b986-4bb7-afb4-530a8b149605/

References

• CVE Record
• NVD entry