PT-2026-60458 · Stoatchat · Stoatchat

CVE-2025-71388 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v4.0

7.6

High

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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).

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2025-71388

Affected Products

Stoatchat

References · 4

• https://github.com/stoatchat/stoatchat/security/advisories/GHSA-8684-rvfj-v3jq · Vendor Advisory
• https://github.com/stoatchat/stoatchat/commit/e3723d647effb81ea3d3919d848faf64dbe89829 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-71388 · Security Note
• https://vulncheck.com/advisories/stoatchat-20241213-1-webhook-token-disclosure-via-read-permissions · Note