What’s Vulnerable › Vulnerabilities

CVE-2021-24838: AnyComment < 0.3.5 - Open Redirect

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-17 · updated 2026-06-17
• Weakness: CWE-601

Description

The AnyComment WordPress plugin before 0.3.5 has an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first, leading to an Open Redirect issue, which according to the vendor, is a feature.

Affected products

• AnyComment: before 0.3.5 — fixed in 0.3.5

How to fix

Upgrade to a fixed version: AnyComment 0.3.5. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/562e81ad-7422-4437-a5b4-fcab9379db82
• https://wpscan.com/vulnerability/562e81ad-7422-4437-a5b4-fcab9379db82

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