Unauthenticated server-side requests via unvalidated corpurl redirect
Published Sep 9, 2025 · Updated Sep 9, 2025
Server-side request forgery in Lingdang CRM 8.6.5.0 through 8.6.5.4 allows remote attackers to send server-originated requests via corpurl. The endpoint reads corpurl directly from the HTTP request and forms a redirect Location value without destination validation; no downstream fetch routine is disclosed. The endpoint requires no authentication, and the published test uses an external DNS-logging host; response disclosure or internal data access is not demonstrated.
Summary
What happened
Server-side request forgery in Lingdang CRM 8.6.5.0 through 8.6.5.4 allows remote attackers to send server-originated requests via corpurl. The endpoint reads corpurl directly from the HTTP request and forms a redirect Location value without destination validation; no downstream fetch routine is disclosed. The endpoint requires no authentication, and the published test uses an external DNS-logging host; response disclosure or internal data access is not demonstrated.
The record
- CVE
- CVE-2025-5005
- Published
- Sep 9, 2025
- Updated
- Sep 9, 2025
- Vendor
- Shanghai Lingdang Information Technology Co., Ltd.
- Product
- Lingdang CRM
- Classifications
- CWE-918, CAPEC-664, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2025CVE publishedPublication date reported by the CVE source.
- Sep 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.6.5.0
- Affected versionversion=8.6.5.1
- Affected versionversion=8.6.5.2
- Affected versionversion=8.6.5.3
- Affected versionversion=8.6.5.4
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Lingdang CRM dingtalk corpurl proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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