CVE-2025-66027
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-29

Last updated on: 2025-12-03

Assigner: GitHub, Inc.

Description
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.6, an information disclosure vulnerability exposes participant details, including names and email addresses through the /api/trpc/polls.get,polls.participants.list endpoint, even when Pro privacy features are enabled. This bypasses intended privacy controls that should prevent participants from viewing other users’ personal information. This issue has been patched in version 4.5.6.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-11-29
Last Modified
2025-12-03
Generated
2026-06-16
AI Q&A
2025-11-29
EPSS Evaluated
2026-06-15
NVD
CVE-2025-66027
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
rallly rallly to 4.5.6 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-359 The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability in Rallly, an open-source scheduling and collaboration tool, allows unauthorized information disclosure. Specifically, before version 4.5.6, participant details such as names and email addresses could be accessed through the /api/trpc/polls.get,polls.participants.list endpoint even when Pro privacy features were enabled. This means the intended privacy controls that should prevent participants from viewing other users' personal information were bypassed.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of personal information of participants, including their names and email addresses. This could result in privacy breaches, potential phishing attacks, spam, or other misuse of exposed personal data.

Compliance Impact

This vulnerability could negatively impact compliance with privacy regulations such as GDPR and HIPAA because it exposes personal information without proper authorization, violating data protection and privacy requirements.

Mitigation Strategies

Upgrade Rallly to version 4.5.6 or later, as this version contains the patch that fixes the information disclosure vulnerability.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-66027. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart