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CVE-2023-2523— Weaver E-Office unrestricted upload

Quick assessment

Affected
Weaver E-Office
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Weaver E-Office是中国泛微科技（Weaver）公司的一个协同办公系统。 Weaver E-Office 9.5版本存在代码问题漏洞，该漏洞源于App/Ajax/ajax.php?action=mobile_upload_save 存在未知函数，通过参数 upload_quwan 导致不受限制的上传。

CVSS 7.3 · High EPSS 32.90% · P98
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I. Basic Information for CVE-2023-2523

Vulnerability Information
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Vulnerability Title
Weaver E-Office unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Weaver E-Office 9.5. It has been rated as critical. Affected by this issue is some unknown functionality of the file App/Ajax/ajax.php?action=mobile_upload_save. The manipulation of the argument upload_quwan leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-228014 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Weaver E-Office 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Weaver E-Office是中国泛微科技（Weaver）公司的一个协同办公系统。 Weaver E-Office 9.5版本存在代码问题漏洞，该漏洞源于App/Ajax/ajax.php?action=mobile_upload_save 存在未知函数，通过参数 upload_quwan 导致不受限制的上传。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Weaver E-Office 9.5 -

II. Public POCs for CVE-2023-2523

# POC Description Source Link Shenlong Link
1 cve-2023-2523-and-cve-2023-2648 https://github.com/bingtangbanli/cve-2023-2523-and-cve-2023-2648 POC Details
2 None https://github.com/Any3ite/CVE-2023-2523 POC Details
3 泛微 cve-2023-2523-and-cve-2023-2648 https://github.com/werwolfz/cve-2023-2523-and-cve-2023-2648 POC Details
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III. Intelligence Information for CVE-2023-2523

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Vendor Advisories for CVE-2023-2523 (2)

Other References for CVE-2023-2523 (1)

IV. Related Vulnerabilities

Same product: E-Office
Same vendor: Weaver
Same weakness: CWE-434

V. Comments for CVE-2023-2523

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