Is CVE-2021-24498 actively exploited?

Yes. CVE-2021-24498 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-24498 be exploited remotely?

The attack vector of CVE-2021-24498 has not been classified yet.

What is the CVSS score of CVE-2021-24498?

CVE-2021-24498 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-24498

UNKNOWNCISA KEVIN THE WILD

CVE-2021-24498

Published: April 11, 2026

EPSS:25.48%probability of exploitation in 30 daysPercentile:96.2th

Official Description

The Calendar Event Multi View WordPress plugin before 1.4.01 does not sanitise or escape the 'start' and 'end' GET parameters before outputting them in the page (via php/edit.php), leading to a reflected Cross-Site Scripting issue.

NVD Source

Technical Analysis

CVE-2021-24498 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-24498 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.