What’s Vulnerable › Vulnerabilities

CVE-2021-25024: Event Calendar < 1.1.51 - Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-17 · updated 2026-06-17
• Weakness: CWE-79

Description

The EventCalendar WordPress plugin before 1.1.51 does not escape some user input before outputting it back in attributes, leading to Reflected Cross-SIte Scripting issues

Affected products

• EventCalendar: before 1.1.51 — fixed in 1.1.51

How to fix

Upgrade to a fixed version: EventCalendar 1.1.51. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/08864b76-d898-4dfe-970d-d7cc1b1115a7
• https://wpscan.com/vulnerability/08864b76-d898-4dfe-970d-d7cc1b1115a7

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