WordPress plugin

Calendar Plus security & vulnerabilities

Q: Is any Calendar Plus vulnerability listed in CISA KEV?

No. None of the known Calendar Plus vulnerabilities is currently listed in the CISA KEV catalog.

calendar-plus— active installsLast vulnerability Sep 12, 2025

Unpatched vulnerability in the latest version

At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.

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1Known vulnerabilities

Critical0
High0
Medium1
Low0

Vulnerabilities per year

All Calendar Plus vulnerabilities

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Calendar Plus: common questions

Does Calendar Plus have known vulnerabilities?

Yes. VulnCrest Radar lists 1 known vulnerability in Calendar Plus: 1 medium. At least one is not fixed in the latest version.

How do I check which version of Calendar Plus I run?

In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.

What is the most recent Calendar Plus vulnerability?

CVE-2025-53350, published Sep 12, 2025: Calendar Plus <= 1.2.4 - Reflected Cross-Site Scripting. Severity: Medium (CVSS 6.1).

Is any Calendar Plus vulnerability listed in CISA KEV?

No. None of the known Calendar Plus vulnerabilities is currently listed in the CISA KEV catalog.