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CVE-2026-109119— Missing Authorization in rdiffweb

Quick assessment

Affected
ikus-soft rdiffweb
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.

Rdiffweb 的用户管理 API 端点（ ）存在权限管理不当的漏洞，允许已认证用户通过在 POST 请求中修改 参数，将自身权限提升至管理员级别。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
ikus-soft rdiffweb < 2.10.6 affected
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I. Basic Information for CVE-2026-109119

Vulnerability Information
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Vulnerability Title
Missing Authorization in rdiffweb
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Privilege Management in the user management API endpoint (/api/users/{username_or_id}) in Rdiffweb allows authenticated users to elevate their privileges to administrator by modifying the role parameter in a POST request.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ikus-soft rdiffweb 0 ~ 2.10.6 -

II. Public POCs for CVE-2026-109119

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-109119

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Other References for CVE-2026-109119 (1)

IV. Related Vulnerabilities

Same product: rdiffweb
Same vendor: ikus-soft
Same weakness: CWE-862

V. Comments for CVE-2026-109119

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