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CVE-2025-61950

Quick assessment

Affected
Japan Total System Co.,Ltd. GroupSession Free edition
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.

Japan Total System GroupSession Free edition等都是日本Japan Total System公司的一个企业协作软件。 Japan Total System多款产品存在安全漏洞，该漏洞源于授权检查不当，可能导致修改备忘录字段。以下产品及版本受到影响：Japan Total System GroupSession Free edition 5.3.0之前版本、Japan Total System GroupSession byCloud 5.3.3之前版本和Japan

AI Predicted 4.9 Difficulty: Easy EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-61950

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. With some crafted request, a logged-in user may alter the memo field. The affected products and versions are GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Japan Total System多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Japan Total System GroupSession Free edition等都是日本Japan Total System公司的一个企业协作软件。 Japan Total System多款产品存在安全漏洞，该漏洞源于授权检查不当，可能导致修改备忘录字段。以下产品及版本受到影响：Japan Total System GroupSession Free edition 5.3.0之前版本、Japan Total System GroupSession byCloud 5.3.3之前版本和Japan
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
Japan Total System Co.,Ltd. GroupSession Free edition prior to ver5.3.0 -
Japan Total System Co.,Ltd. GroupSession byCloud prior to ver5.3.3 -
Japan Total System Co.,Ltd. GroupSession ZION prior to ver5.3.2 -

II. Public POCs for CVE-2025-61950

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-61950

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Vendor Advisories for CVE-2025-61950 (1)

Other References for CVE-2025-61950 (1)

Same Patch Batch · Japan Total System Co.,Ltd. · 2025-12-12 · 10 CVEs total

CVE-2025-61987 Japan Total System多款产品 安全漏洞
CVE-2025-54407 Japan Total System多款产品 跨站脚本漏洞
CVE-2025-62192 Japan Total System多款产品 SQL注入漏洞
CVE-2025-58576 Japan Total System多款产品 跨站请求伪造漏洞
CVE-2025-53523 Japan Total System GroupSession Free edition和Japan Total System GroupSession byCloud 跨站脚本漏
CVE-2025-66284 Japan Total System多款产品 跨站脚本漏洞
CVE-2025-64781 Japan Total System多款产品 安全漏洞
CVE-2025-57883 Japan Total System GroupSession Free edition和Japan Total System GroupSession byCloud 跨站脚本漏
CVE-2025-65120 Japan Total System多款产品 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: GroupSession Free edition
Same vendor: Japan Total System Co.,Ltd.
Same weakness: CWE-639

V. Comments for CVE-2025-61950

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