CVE-2025-66027

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductRallly

PublishedNov 29, 2025

First seenNov 29, 2025

Weakness typeCWE-200Sensitive information exposure CWE-284Improper access control CWE-359CWE-359

How to fix

Update

rallly rallly4.5.6 or later

Affected products

Product	Affected versions	Fixed in
rallly rallly	v < 4.5.6	4.5.6

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