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Lingdang CRM CVE-2025-8345

LOW
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
2025-07-31 cna@vuldb.com
PHP SQLi Lingdang Crm
2.1
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Apr 29, 2026 - 01:18 vuln.today

DescriptionCVE.org

A vulnerability classified as critical was found in Shanghai Lingdang Information Technology Lingdang CRM up to 8.6.4.7. Affected by this vulnerability is the function delete_user of the file crm/WeiXinApp/yunzhijia/yunzhijiaApi.php. The manipulation of the argument function leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 8.6.5.2 is able to address this issue. It is recommended to upgrade the affected component.

AnalysisAI

SQL injection in Lingdang CRM versions up to 8.6.4.7 allows authenticated remote attackers to execute arbitrary SQL queries via the function parameter in the delete_user function of crm/WeiXinApp/yunzhijia/yunzhijiaApi.php. Public exploit code exists, and vendor has released patched version 8.6.5.2 to remediate the vulnerability.

Technical ContextAI

Lingdang CRM is a PHP-based customer relationship management system developed by Shanghai Lingdang Information Technology. The vulnerability exists in the yunzhijiaApi.php file, specifically in the delete_user function, which fails to properly validate or sanitize the function parameter before incorporating it into SQL queries. This is a classic CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) issue where user-supplied input is passed directly to SQL queries without parameterized statements or proper escaping, enabling attackers to inject arbitrary SQL commands.

RemediationAI

Upgrade Lingdang CRM to version 8.6.5.2 or later immediately. If immediate upgrade is not feasible, implement network-level access controls to restrict access to the crm/WeiXinApp/yunzhijia/yunzhijiaApi.php endpoint to trusted administrative users only, and monitor CRM user authentication logs for suspicious delete_user function calls with unusual parameter values. Additionally, implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the function parameter, though this approach should be considered a temporary measure pending patching, as parameterized query injection techniques may bypass pattern-based detection.

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CVE-2025-8345 vulnerability details – vuln.today
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