CVE-2026-54840: WordPress Newsletters plugin <= 4.13 - Broken Access Control vulnerability

Published Jun 26, 2026
·
Updated

Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.

Affected Software

1 affected component
WordPress Newsletters<=4.13

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade WordPress Newsletters plugin to a version that resolves this vulnerability.

    Fixed in 4.14

Event History

Jun 26, 2026
CVE Published
via MITRE·02:52 PM
Data Sourced
via MITRE·02:52 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·03:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-54840?

The severity of CVE-2026-54840 is rated high with a score of 7.3.

2

What is CVE-2026-54840?

CVE-2026-54840 is a Broken Access Control vulnerability in WordPress Newsletters plugin versions up to 4.13.

3

How do I fix CVE-2026-54840?

To fix CVE-2026-54840, update the WordPress Newsletters plugin to version 4.14 or later.

4

Can CVE-2026-54840 be exploited remotely?

Yes, CVE-2026-54840 can be exploited remotely due to its unauthenticated nature.

5

What impact can CVE-2026-54840 have on my website?

CVE-2026-54840 can lead to unauthorized access to sensitive data on your website.

Contact

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