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Vulnerability Details :

CVE-2026-32616

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-13 Mar, 2026 | 21:12
Updated At-16 Mar, 2026 | 16:46
Rejected At-
Credits

Pigeon has a Host Header Injection in email verification flow

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.

Vendors
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Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:13 Mar, 2026 | 21:12
Updated At:16 Mar, 2026 | 16:46
Rejected At:
▼CVE Numbering Authority (CNA)
Pigeon has a Host Header Injection in email verification flow

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.

Affected Products
Vendor
kasuganosoras
Product
Pigeon
Versions
Affected
  • < 1.0.201
Problem Types
TypeCWE IDDescription
CWECWE-74CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Type: CWE
CWE ID: CWE-74
Description: CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Metrics
VersionBase scoreBase severityVector
3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcr
x_refsource_CONFIRM
https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201
x_refsource_MISC
Hyperlink: https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcr
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:16 Mar, 2026 | 14:19
Updated At:16 Apr, 2026 | 14:57

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-74Primarysecurity-advisories@github.com
CWE ID: CWE-74
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201security-advisories@github.com
N/A
https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcrsecurity-advisories@github.com
N/A
Hyperlink: https://github.com/kasuganosoras/Pigeon/releases/tag/1.0.201
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/kasuganosoras/Pigeon/security/advisories/GHSA-rrj4-9wgq-prcr
Source: security-advisories@github.com
Resource: N/A

Change History

0
Information is not available yet

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