CVE-2026-112042
Received Received - Intake

Reflected Cross-Site Scripting in Diem Project

Publication date: 2026-10-19

Last updated on: 2026-10-19

Assigner: VulDB

Description
A security flaw has been discovered in diem-project diem up to 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. This issue affects the function dmBaseLinkTag::text of the file dmCorePlugin/lib/view/html/link/dmBaseLinkTag.php of the component dmWidget. Performing a manipulation of the argument text results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

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Meta Information

Published
2026-10-19
Last Modified
2026-10-19
Generated
2026-10-19
AI Q&A
2026-10-19
EPSS Evaluated
N/A
NVD
CVE-2026-112042
EUVD
EUVD-2026-104048

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in the Diem project's Link Widget. User-controlled input in the text field is inserted into HTML without proper escaping, allowing attackers to inject malicious scripts. The flaw exists because the widget treats input as HTML and directly renders it in the anchor element's body.

Detection Guidance

Check for unauthorized script execution in link widgets by inspecting HTML output for unescaped user input in dmBaseLinkTag.php and related files. Look for tags like <script> or event handlers (e.g., onerror) in link text fields.

Impact Analysis

An attacker with widget editing privileges can inject JavaScript into the link text field. When the page is viewed, the script executes in the user's browser, enabling actions like manipulating page content, performing same-origin requests, reading session data, or presenting phishing interfaces.

Compliance Impact

This vulnerability enables stored cross-site scripting (XSS), allowing attackers to inject malicious scripts into web pages. Such attacks can compromise user sessions, steal sensitive data, or manipulate content, which may violate GDPR's data protection requirements and HIPAA's security rules for protecting health information.

Mitigation Strategies

Disable widget editing privileges for untrusted users. Apply HTML escaping to user-controlled input in dmBaseLinkTag.php and related files. Replace nl2br() with a sanitization function before rendering link text.

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