CVE-2025-71388

Name of the Vulnerable Software and Affected Versions stoatchat (delta/Revolt) versions 20241213-1 through 20250210-1

Description Users with only ViewChannel (read) permission on a channel can fetch that channel's webhooks and their associated tokens. This occurs because the webhook fetch endpoint incorrectly validates the ViewChannel permission instead of the ManageWebhooks permission. An attacker with a retrieved token can send arbitrary messages to the channel, bypassing permissions and impersonating a bot or webhook.

Recommendations Update stoatchat (delta/Revolt) to version 20250210-1 (0.8.2).