What’s Vulnerable › Vulnerabilities

CVE-2021-24553: Timeline Calendar <= 1.2 - 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 Timeline Calendar WordPress plugin through 1.2 does not sanitise, validate or escape the edit GET parameter before using it in a SQL statement when editing events, leading to an authenticated SQL injection issue. Other SQL Injections are also present in the plugin

Affected products

• Timeline Calendar: through 1.2

References

• https://codevigilant.com/disclosure/2021/wp-plugin-timeline-calendar/
• https://wpscan.com/vulnerability/14c75a00-a52b-430b-92da-5145e5aee30a
• https://codevigilant.com/disclosure/2021/wp-plugin-timeline-calendar/
• https://wpscan.com/vulnerability/14c75a00-a52b-430b-92da-5145e5aee30a

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