CVE-2026-54840

HIGHCVSS 7.3/10EPSS 0.30%

Last modified

CVE-2026-54840 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.

Metrics

EPSS Probability
0.30%

22.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-54840?
Unauthenticated Broken Access Control in Newsletters <= 4.13 versions.
How severe is CVE-2026-54840?
CVE-2026-54840 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2026-54840?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST