stoatchat up to 0.8.1 Webhook Fetch Endpoint permission

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.33+

Summaryinfo

A vulnerability was found in stoatchat up to 0.8.1. It has been declared as critical. The impacted element is an unknown function of the component Webhook Fetch Endpoint. The manipulation results in permission. This vulnerability was named CVE-2025-71388. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in stoatchat up to 0.8.1. It has been classified as critical. Affected is some unknown processing of the component Webhook Fetch Endpoint. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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).

The advisory is available at github.com. This vulnerability is traded as CVE-2025-71388 since 07/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

Upgrading to version 20250210-1 eliminates this vulnerability.

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Productinfo

Type

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: stoatchat 20250210-1

Timelineinfo

07/16/2026 Advisory disclosed
07/16/2026 +0 days CVE reserved
07/16/2026 +0 days VulDB entry created
07/16/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-71388 (🔒)
GCVE (CVE): GCVE-0-2025-71388
GCVE (VulDB): GCVE-100-379518

Entryinfo

Created: 07/16/2026 15:11
Changes: 07/16/2026 15:11 (53)
Complete: 🔍
Cache ID: 216::103

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