CVE-2025-20072— Mobile crash via improper validation of proto style in attachments
Quick assessment
Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mattermost Mobile Apps是美国Mattermost公司的一款消息传递移动应用程序。 Mattermost Mobile Apps 2.22.0版本存在安全漏洞，该漏洞源于无法正确验证post.props.attachments中提供给操作样式的proto样式，允许攻击者通过精心设计的恶意输入使移动设备崩溃。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-20072
Vulnerability Information
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Vulnerability Title
Mobile crash via improper validation of proto style in attachments
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost Mobile versions <= 2.22.0 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the mobile via crafted malicious input.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不正确的类型转换
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost Mobile Apps 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost Mobile Apps是美国Mattermost公司的一款消息传递移动应用程序。 Mattermost Mobile Apps 2.22.0版本存在安全漏洞，该漏洞源于无法正确验证post.props.attachments中提供给操作样式的proto样式，允许攻击者通过精心设计的恶意输入使移动设备崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mattermost | Mattermost | 0 ~ 2.22.0 | - |
|
II. Public POCs for CVE-2025-20072
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Mattermost · 2025-01-16 · 3 CVEs total
| CVE-2025-20630 | 6.5 MEDIUM | Mobile crash via object that can't be cast to String in Attachment Field |
| CVE-2025-20621 | 6.5 MEDIUM | Webapp crash via object that can't be cast to String in Attachment Field |
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V. Comments for CVE-2025-20072
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