TI-2026-25125 Aliases CVE-2026-32616

Pigeon has a Host Header Injection in email verification flow

LOW 35CWE-74Published 2026-03-13 · Updated 2026-03-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00215 12th percentileScored 2026-11-07

Fix Fixed Pigeon (kasuganosoras): 1.0.201

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
kasuganosoras	Pigeon	before 1.0.201	1.0.201	Patch available	CNA

Pigeon Vendorkasuganosoras Affected before 1.0.201 Fixed in 1.0.201 Patch available CNA

Remediation

Fix · CNA Pigeon (kasuganosoras) Fixed in 1.0.201

Timeline

2026-10-02 Threatist record created from CVE-2026-32616

References

Other 2

TI-2025-01243 kasuganosoras Pigeon index.php server-side request forgery CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences