CVE-2026-86824 — MEDIUM (4.8)

Vulnerability Description

The Newsletter WordPress plugin before 9.3.8 does not generate its email tracking signing key with sufficient entropy and signs its tracking links with an unkeyed hash, allowing an unauthenticated attacker who recovers that key offline to forge tracking links, obtain any subscriber's session token, and read and modify that subscriber's stored personal data.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-326

References

https://wpscan.com/vulnerability/62ee25d9-ec38-402c-9959-37fd89708aca/

FAQ

What is CVE-2026-86824?

CVE-2026-86824 is a vulnerability with a CVSS score of 4.8 (MEDIUM). The Newsletter WordPress plugin before 9.3.8 does not generate its email tracking signing key with sufficient entropy and signs its tracking links with an unkeyed hash, allowing an unauthenticated at...

How severe is CVE-2026-86824?

CVE-2026-86824 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-86824?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.