CVE-2026-17520 — MEDIUM (4.8)

Vulnerability Description

The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute the key and perform privileged actions such as adding and deleting subscribers and sending emails, when the optional API has been enabled.

CVSS Score

4.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-326

References

https://wpscan.com/vulnerability/5a719e6b-22e1-4950-bf17-cd92e2ea6685/

FAQ

What is CVE-2026-17520?

CVE-2026-17520 is a vulnerability with a CVSS score of 4.8 (MEDIUM). The Newsletters WordPress plugin before 4.17 does not generate its API key using a sufficiently random source, deriving it from a publicly known value, allowing unauthenticated attackers to compute th...

How severe is CVE-2026-17520?

CVE-2026-17520 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-2026-17520?

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