What’s Vulnerable › Vulnerabilities

CVE-2021-27329

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-18 · updated 2026-06-17
• Weakness: CWE-918

Description

Friendica 2021.01 allows SSRF via parse_url?binurl= for DNS lookups or HTTP requests to arbitrary domain names.

Affected products

• Frendica: 2021.01

References

• https://github.com/friendica/friendica/issues/9929
• https://github.com/friendica/friendica/issues/9929

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