CVE-2026-39767: WordPress WPBase Cache plugin <= 5.5.6 - Denial of Service Attack vulnerability

Q: What level of access does an attacker need to exploit this issue?

An attacker needs Subscriber-level access. The attack can be performed remotely and does not require user interaction.

Q: What is the expected impact of successful exploitation?

Successful exploitation can cause a denial of service. The provided severity vector indicates availability impact only, with no stated confidentiality or integrity impact.

Q: Which plugin versions are affected?

WPBase Cache versions 5.5.6 and earlier are affected.

Published Oct 6, 2026

Updated

Subscriber Denial of Service Attack in WPBase Cache <= 5.5.6 versions.

Affected Software

1 affected component

WordPress WPBase Cache<=5.5.6

Event History

Oct 6, 2026

CVE Published

via MITRE·08:34 AM

Data Sourced

via MITRE·08:34 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·09:17 AM

DescriptionSeverityWeakness

Frequently Asked Questions

What level of access does an attacker need to exploit this issue?

An attacker needs Subscriber-level access. The attack can be performed remotely and does not require user interaction.

What is the expected impact of successful exploitation?

Successful exploitation can cause a denial of service. The provided severity vector indicates availability impact only, with no stated confidentiality or integrity impact.

Which plugin versions are affected?

WPBase Cache versions 5.5.6 and earlier are affected.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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