CVE-2025-71388

stoatchat 20241213-1 Webhook Token Disclosure via Read Permissions

HIGH
7.6
CVSS Score
Published: July 16, 2026 at 12:19 PM UTC
Updated: October 6, 2026 at 10:10 PM UTC
1 product affected across 1 vendorStoatchat

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Severity
HIGH7.6
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

20241213-1 ≤ v < 20250210-120241213-1
Vendor states this is fixed in 20250210-1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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