What’s Vulnerable › Vulnerabilities

CVE-2021-24371: RSVPMaker < 8.7.3 - Authenticated (admin+) SSRF

• Severity: low (CVSS 2.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-02 · updated 2026-06-17
• Weakness: CWE-918

Description

The Import feature of the RSVPMaker WordPress plugin before 8.7.3 (/wp-admin/tools.php?page=rsvpmaker_export_screen) takes an URL input and calls curl on it, without first validating it to ensure it's a remote one. As a result, a high privilege user could use that feature to scan the internal network via a SSRF attack.

Affected products

• David F. Carr RSVPMaker: before 8.7.3 — fixed in 8.7.3

How to fix

Upgrade to a fixed version: David F. Carr RSVPMaker 8.7.3. Check the vendor advisory for mitigations.

References

• https://codevigilant.com/disclosure/2021/wp-plugin-rsvpmaker/
• https://wpscan.com/vulnerability/63be225c-ebee-4cac-b43e-cf033ee7425d
• https://codevigilant.com/disclosure/2021/wp-plugin-rsvpmaker/
• https://wpscan.com/vulnerability/63be225c-ebee-4cac-b43e-cf033ee7425d

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