CVE-2026-76800 DeDeCMS select_media_post.php unrestricted upload
Remote attackers can upload arbitrary files via the select_media_post.php script, potentially leading to code execution on the server.
- 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-2026-76800?
CVE-2026-76800 is a medium-severity vulnerability in DeDeCMS, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in DeDeCMS 3. Affected by this vulnerability is an unknown functionality of the file /include/dialog/select_media_post.php. Executing a manipulation of the argument uploadfile can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-76800?
How do I fix CVE-2026-76800?
No fix has been published for CVE-2026-76800 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76800 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-76800 exists.
Sources
Also known as GHSA-cqr6-46h6-qqxj.