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CVE-2026-112040— diem-project diem Sign-In BasedmUserActions.class.php redirect

Quick assessment

Affected
diem-project diem
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.

在 diem-project 的 diem 项目中（版本至 116974edfb9a5b8bd69cb13586dc62bcdbb485ad）发现一处安全漏洞。该漏洞影响组件“登录（Sign-In）”中文件 的某个未知部分。通过对 参数进行操纵，可引发开放重定向漏洞。该攻击可远程实施。相关利用方式已公开披露，可能被恶意利用。该产品采用滚动发布策略以确保持续交付，因此无法明确列出受影响或已修复的具体版本。项目方已通过问题报告在早期获知此漏洞，但截至目前尚未作出回应。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1566 · Phishing
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I. Basic Information for CVE-2026-112040

Vulnerability Information
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Vulnerability Title
diem-project diem Sign-In BasedmUserActions.class.php redirect
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. This affects an unknown part of the file dmCorePlugin/plugins/dmUserPlugin/modules/dmUser/lib/BasedmUserActions.class.php of the component Sign-In. This manipulation of the argument Referer causes open redirect. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad cpe:2.3:a:diem-project:diem:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112040

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III. Intelligence Information for CVE-2026-112040

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Other References for CVE-2026-112040 (2)

Other References for CVE-2026-112040 (4)

Same Patch Batch · diem-project · 2026-10-19 · 6 CVEs total

CVE-2026-112041 3.7 LOW diem-project diem dmString.php random weak prng
CVE-2026-112037 3.7 LOW diem-project diem Google Analytics Client gapi.class.php certificate validation
CVE-2026-112042 3.5 LOW diem-project diem dmWidget dmBaseLinkTag.php text cross site scripting
CVE-2026-112038 2.4 LOW diem-project diem Version Check Service dmAdminCtrl.js html cross site scripting
CVE-2026-112039 2.4 LOW diem-project diem Administrative Console actions.class.php append cross site scripting

IV. Related Vulnerabilities

Same product: diem
Same vendor: diem-project
Same weakness: CWE-601

V. Comments for CVE-2026-112040

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