CVE-2026-9421 KLiK SocialMediaWebsite File upload.inc.php uniqid unrestricted upload
Attackers can upload arbitrary files via the file handler, potentially leading to remote code execution on the KLiK SocialMediaWebsite platform.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9421?
CVE-2026-9421 is a medium-severity vulnerability in KLiK SocialMediaWebsite, published on 25 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in KLiK SocialMediaWebsite 1.0. This vulnerability affects the function uniqid of the file upload.inc.php of the component File Handler. This manipulation causes unrestricted upload. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-9421?
How do I fix CVE-2026-9421?
No fix has been published for CVE-2026-9421 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9421 being exploited?
There is no known exploitation of CVE-2026-9421 in the wild and no public exploit code.
Sources
Also known as GHSA-fhgp-q8x3-7fx5.