CVE-2026-78146
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductSimple Newsletter Plugin
PublishedAug 26, 2026
First seenAug 26, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- Simple Newsletter Plugin4.3.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Simple Newsletter Plugin | 4.0.0 ≤ v < 4.3.3 | 4.3.3 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.