What’s Vulnerable › Vulnerabilities

CVE-2021-24552: Simple Events Calendar <= 1.4.0 - Authenticated (admin+) SQL Injection

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-23 · updated 2026-06-17
• Weakness: CWE-89

Description

The Simple Events Calendar WordPress plugin through 1.4.0 does not sanitise, validate or escape the event_id POST parameter before using it in a SQL statement when deleting events, leading to an authenticated SQL injection issue

Affected products

• Simple Events Calendar: through 1.4.0

References

• https://codevigilant.com/disclosure/2021/wp-plugin-simple-events-calendar/
• https://wpscan.com/vulnerability/3482a015-a5ed-4913-b516-9eae2b3f89db
• https://codevigilant.com/disclosure/2021/wp-plugin-simple-events-calendar/
• https://wpscan.com/vulnerability/3482a015-a5ed-4913-b516-9eae2b3f89db

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