Cross-Site Request Forgery Vulnerability in Newsletters WordPress Plugin
CVE-2026-17522

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Newsletters
Vendor
CVE Published:
29 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-17522?

The Newsletters WordPress plugin prior to version 4.17 is susceptible to a Cross-Site Request Forgery (CSRF) attack due to the absence of nonce or capability checks when saving settings. This oversight allows logged-in attackers to overwrite arbitrary settings, including sensitive API credentials, by submitting malicious requests without proper authorization. This vulnerability poses a significant security risk as it enables unauthorized changes that could compromise the integrity of the plugin's configuration.

Affected Version(s)

Newsletters 0 < 4.17

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-17522 - Proof of Concept

References

https://wpscan.com/vulnerability/ebb8d4b7-14b5-49ed-b727-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erwan LR (WPScan)
WPScan
.