CVE-2026-32616
High
Description
Pigeon is a message board/notepad/social system/blog. Prior to 1.0.201, the application uses $_SERVER['HTTP_HOST'] without validation to construct email verification URLs in the register and resendmail flows. An attacker can manipulate the Host header in the HTTP request, causing the verification link sent to the user's email to point to an attacker-controlled domain. This can lead to account takeover by stealing the email verification token. This vulnerability is fixed in 1.0.201.
SeverityHigh
CVSS8.2
Exploit probability—
ProductPigeon
PublishedMar 16, 2026
First seenMar 16, 2026
Weakness typeCWE-74Injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kasuganosoras Pigeon | < 1.0.201 | — |
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