CVE-2026-82679 diem-project diem Widget Editor dmWidgetContentBaseMediaForm.php unrestricted upload
Remote attackers can upload arbitrary files via the Widget Editor, potentially leading to code execution on diem CMS installations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82679?
CVE-2026-82679 is a medium-severity vulnerability in diem-project diem, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-82679?
How do I fix CVE-2026-82679?
No fix has been published for CVE-2026-82679 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82679 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82679 exists.
Sources
Also known as GHSA-g23j-pp4q-43hx.