CVE-2026-82679

diem-project diem Widget Editor dmWidgetContentBaseMediaForm.php unrestricted upload

State: Published
Severity: 5.3 Medium
Published: Aug 31, 2026
Updated: Sep 2, 2026
Reserved: Aug 30, 2026

Description

A security flaw has been discovered in diem-project diem up to 5.1.3. The impacted element is an unknown function of the file dmFrontPlugin/lib/dmWidget/media/dmWidgetContentBaseMediaForm.php of the component Widget Editor. Performing a manipulation results in unrestricted upload. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-434 Unrestricted Upload
CWE-284 Improper Access Controls

Affected Products

Product	Versions
diemdiem-project	5.1.0Affected 5.1.1Affected 5.1.2Affected 5.1.3Affected

References

VDB-397174 | diem-project diem Widget Editor dmWidgetContentBaseMediaForm.php unrestricted uploadvdb-entry
VDB-397174 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-82679 | CVE Analysis and Reportthird-party-advisory
Submit #894026 | diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Code Injectionthird-party-advisory
https://github.com/diem-project/diem/issues/448exploitissue-tracking
https://github.com/diem-project/diem/product

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