7.3
HIGH
CVSS 3.1
CVE-2026-54840
WordPress Newsletters plugin <= 4.13 - Broken Access Control vulnerability
Overview
Description
Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.
Details
INFO
Published Date :
June 26, 2026, 2:52 p.m.
Last Modified :
June 26, 2026, 2:52 p.m.
Remotely Exploit :
Yes !
Source :
Patchstack
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 21595511-bba5-4825-b968-b78d1f9984a3 | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
Update the newsletter application to a version later than 4.13 to fix broken access control.
- Update the newsletter application beyond version 4.13.
- Restrict unauthorized access to newsletter functionalities.
- Apply vendor-provided patches or updates.
- Review and strengthen access control configurations.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-54840 vulnerability anywhere in the article.
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.