CVE-2025-71388 stoatchat 20241213-1 Webhook Token Disclosure via Read Permissions
Users with read-only permissions can access webhook tokens to send arbitrary messages, bypassing channel restrictions and impersonating bots.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-71388?
CVE-2025-71388 is a high-severity missing authorization vulnerability in stoatchat, published on 16 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
stoatchat (delta/Revolt) versions from 20241213-1 before 20250210-1 allow users with only ViewChannel (read) permission on a channel to fetch that channel's webhooks, including their tokens, because the webhook fetch endpoint checked for ViewChannel instead of ManageWebhooks. Using a retrieved token, an attacker can send arbitrary messages to the channel, bypassing channel permissions and impersonating a bot or webhook. Fixed in 20250210-1 (0.8.2).
Weakness: CWE-639
Which versions are affected by CVE-2025-71388?
How do I fix CVE-2025-71388?
No fix has been published for CVE-2025-71388 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-71388 being exploited?
There is no known exploitation of CVE-2025-71388 in the wild and no public exploit code.
Sources
Also known as GHSA-8684-rvfj-v3jq, GHSA-9hv3-3cv6-jrx3.