---
id: CVE-2026-86183
title: A vulnerability was identified in diem-project diem up to 5.1.3
summary: >-
  A vulnerability was identified in diem-project diem up to 5.1.3. This
  vulnerability affects unknown code of the file
  dmFrontPlugin/modules/dmWidget/lib/BasedmWidgetActions.class.php of the
  component dmWidget. Such manipulation of the arg…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-285
  - CWE-639
vendor: diem-project
product: diem
affected:
  - diem 5.1.0
  - diem 5.1.1
  - diem 5.1.2
  - diem 5.1.3
published: '2026-09-06'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T21:17:36.457'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86183'
references:
  - url: 'https://github.com/diem-project/diem/'
    label: cna@vuldb.com
  - url: 'https://github.com/diem-project/diem/issues/450'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-86183'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/896155'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399315'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399315/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-11T20:03:19.050634Z'
epss: 0.00334
epssPercentile: 0.26921
ingestedAt: '2026-09-06T18:59:02.520Z'
---

## Overview

A vulnerability was identified in diem-project diem up to 5.1.3. This vulnerability affects unknown code of the file dmFrontPlugin/modules/dmWidget/lib/BasedmWidgetActions.class.php of the component dmWidget. Such manipulation of the argument widget_id leads to authorization bypass. The attack may be launched remotely. The exploit is publicly available and might be used. The name of the patch is 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. A patch should be applied to remediate this issue. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.