CVE-2026-32616CWE-74

Pigeon has a Host Header Injection in email verification flow

High · published March 13, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
26.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00344 · 26.7th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2026-03-13T21:12Z
EPSS history
Timeline
  • 13 MAR 21:12Z
    Pigeon has a Host Header Injection in email verification flow
    cvelistv5