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CVE-2026-40543— Missing Authorization in SOPlanning

Quick assessment

Affected
SOPlanning SOPlanning
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.

SOPlanning是SOPlanning公司的一套在线项目管理软件。 SOPlanning 1.55及之前版本存在安全漏洞，该漏洞源于未对备份功能实施授权，可能导致未经身份验证的攻击者直接查询备份相关端点并检索包含用户数据库、用户名和密码哈希以及敏感信息的config.csv文件的备份存档。

AI Predicted 9.1 Difficulty: Trivial EPSS 0.27% · P20

Possible ATT&CK Techniques 2 AI

T1530 · Data from Cloud Storage T1530.001

Affected Version Matrix 1

VendorProduct Version RangeStatus
SOPlanning SOPlanning ≤ 1.55 affected
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I. Basic Information for CVE-2026-40543

Vulnerability Information
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Vulnerability Title
Missing Authorization in SOPlanning
Source: CVE Program / CVE List V5
Vulnerability Description
SOPlanning does not enforce authorization for backup functionalities. An unauthenticated attacker can directly query backup-related endpoints and retrieve backup archives containing user databases with usernames and password hashes, as well as the config.csv file, which includes additional sensitive information. This issue affects SOPlanning version 1.55 and below.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
SOPlanning 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SOPlanning是SOPlanning公司的一套在线项目管理软件。 SOPlanning 1.55及之前版本存在安全漏洞，该漏洞源于未对备份功能实施授权，可能导致未经身份验证的攻击者直接查询备份相关端点并检索包含用户数据库、用户名和密码哈希以及敏感信息的config.csv文件的备份存档。
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
SOPlanning SOPlanning 0 ~ 1.55 -

II. Public POCs for CVE-2026-40543

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III. Intelligence Information for CVE-2026-40543

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Security Blog Posts for CVE-2026-40543 (1)

Same Patch Batch · SOPlanning · 2026-06-01 · 7 CVEs total

CVE-2026-40545 Reflected XSS in SOPlanning
CVE-2026-40546 Multiple SQL Injections in SOPlanning
CVE-2026-40548 Unrestricted Upload of File with Dangerous Type in SOPlanning
CVE-2026-40549 Cross-Site Request Forgery in SOPlanning
CVE-2026-40544 Stored XSS in SOPlanning
CVE-2026-40547 Path Traversal in SOPlanning

IV. Related Vulnerabilities

Same product: SOPlanning
Same vendor: SOPlanning
Same weakness: CWE-862

V. Comments for CVE-2026-40543

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