What’s Vulnerable › Vulnerabilities

CVE-2025-62428: Drawing-Captcha APP Host Header Injection in `/register` and `/confirm-email` Endpoints

• Severity: high (CVSS 8.8 v4.0)
• 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: 2025-10-16 · updated 2026-10-09
• Weakness: CWE-601

Description

Drawing-Captcha APP provides interactive, engaging verification for Web-Based Applications. The vulnerability is a Host Header Injection in the /register and /confirm-email endpoints. It allows an attacker to manipulate the Host header in HTTP requests to generate malicious email confirmation links. These links can redirect users to attacker-controlled domains. This vulnerability affects all users relying on email confirmation for account registration or verification. This vulnerability is fixed in 1.2.5-alpha-patch.

Affected products

• Drawing-Captcha-APP: before 1.2.5-alpha-patch

References

• https://github.com/Drawing-Captcha/Drawing-Captcha-APP/issues/30
• https://github.com/Drawing-Captcha/Drawing-Captcha-APP/security/advisories/GHSA-5pj8-fc6g-vv7m
• https://github.com/Drawing-Captcha/Drawing-Captcha-APP/issues/30

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