What’s Vulnerable › Vulnerabilities

CVE-2021-31779

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-28 · updated 2026-06-17
• Weakness: CWE-918

Description

The yoast_seo (aka Yoast SEO) extension before 7.2.1 for TYPO3 allows SSRF via a backend user account.

Affected products

• Yoast SEO: Local: before 7.2.1 — fixed in 7.2.1

How to fix

Upgrade to a fixed version: Yoast SEO: Local 7.2.1. Check the vendor advisory for mitigations.

References

• https://typo3.org/security/advisory/typo3-ext-sa-2021-006
• https://typo3.org/security/advisory/typo3-ext-sa-2021-006

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