CVE-2025-66027
Rallly Information Disclosure Vulnerability in Participant API Leaks Names and Emails Despite Pro Privacy Settings
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.
INFO
Published Date :
Nov. 29, 2025, 1:16 a.m.
Last Modified :
Dec. 3, 2025, 8:25 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Rallly to version 4.5.6 or later.
- Verify privacy settings are correctly configured.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-66027.
| URL | Resource |
|---|---|
| https://github.com/lukevella/rallly/commit/59738c04f9a8ec25f0af5ce20ad0eab6cf134963 | Patch |
| https://github.com/lukevella/rallly/releases/tag/v4.5.6 | Release Notes |
| https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg | Exploit Vendor Advisory |
| https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-66027 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-66027
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-66027 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-66027 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 03, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:rallly:rallly:*:*:*:*:*:*:*:* versions up to (excluding) 4.5.6 Added Reference Type GitHub, Inc.: https://github.com/lukevella/rallly/commit/59738c04f9a8ec25f0af5ce20ad0eab6cf134963 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/lukevella/rallly/releases/tag/v4.5.6 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 01, 2025
Action Type Old Value New Value Added Reference https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg -
New CVE Received by [email protected]
Nov. 29, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-200 Added CWE CWE-284 Added CWE CWE-359 Added Reference https://github.com/lukevella/rallly/commit/59738c04f9a8ec25f0af5ce20ad0eab6cf134963 Added Reference https://github.com/lukevella/rallly/releases/tag/v4.5.6 Added Reference https://github.com/lukevella/rallly/security/advisories/GHSA-65wg-8xgw-f3fg