What’s Vulnerable › Vulnerabilities
CVE-2026-78146: Noptin < 4.3.3 - Unauthenticated Subscriber PII and confirm_key Disclosure via Actions Page
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-26 · updated 2026-08-26
- Weakness: CWE-200
Description
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 products
- Simple Newsletter Plugin: from 4.0.0 before 4.3.3 — fixed in 4.3.3
How to fix
Upgrade to a fixed version: Simple Newsletter Plugin 4.3.3. Check the vendor advisory for mitigations.
References
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