CVE-2024-7472: Email Injection Vulnerability in lunary-ai/lunary

Severity: medium (CVSS 6.5 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: yes
Published: 2024-10-29 · updated 2026-06-17
Weakness: CWE-93

Description

lunary-ai/lunary v1.2.26 contains an email injection vulnerability in the Send email verification API (/v1/users/send-verification) and Sign up API (/auth/signup). An unauthenticated attacker can inject data into outgoing emails by bypassing the extractFirstName function using a different whitespace character (e.g., \xa0). This vulnerability can be exploited to conduct phishing attacks, damage the application's brand, cause legal and compliance issues, and result in financial impact due to unauthorized email usage.

Affected products

lunary-ai/lunary: 1.2.26

References

https://github.com/lunary-ai/lunary/commit/a39837d7c49936a0c435d241f37ca2ea7904d2cd
https://huntr.com/bounties/dc1feec6-1efb-4538-9b56-ab25deb80948

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