CVE-2026-21640
Quick assessment
Affected
Revive Revive Adserver
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.
Revive Adserver是Revive Adserver团队的一套开源的广告管理系统。该系统提供广告投放、广告位管理、数据统计等功能。 Revive Adserver存在安全漏洞，该漏洞源于设置中存在格式字符串注入，当设置中使用特定字符组合时，可能导致管理员控制台因致命PHP错误而被禁用。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-21640
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
HackerOne community member Faraz Ahmed (PakCyberbot) has reported a format string injection in the Revive Adserver settings. When specific character combinations are used in a setting, the admin user console could be disabled due to a fatal PHP error.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Revive Adserver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Revive Adserver是Revive Adserver团队的一套开源的广告管理系统。该系统提供广告投放、广告位管理、数据统计等功能。 Revive Adserver存在安全漏洞，该漏洞源于设置中存在格式字符串注入，当设置中使用特定字符组合时，可能导致管理员控制台因致命PHP错误而被禁用。
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 |
|---|---|---|---|---|
| Revive | Revive Adserver | 6 ~ 6.0.4 | - |
|
II. Public POCs for CVE-2026-21640
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Revive · 2026-01-20 · 5 CVEs total
| CVE-2026-21664 | Revive Adserver 安全漏洞 | |
| CVE-2026-21641 | Revive Adserver 安全漏洞 | |
| CVE-2026-21642 | Revive Adserver 安全漏洞 | |
| CVE-2026-21663 | Revive Adserver 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-21640
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