CVE-2026-30643 Code injection in n/a

Critical 9.8 Published Updated

Attackers can execute arbitrary code by submitting crafted setup tag values during module uploads in DedeCMS.

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-2026-30643?

CVE-2026-30643 is a critical code injection vulnerability in Dedecms Dedecms, published on 1 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in DedeCMS 5.7.118 allowing attackers to execute code via crafted setup tag values in a module upload.

Weakness: CWE-94

Which versions are affected by CVE-2026-30643?

It affects 1 product.

Products include Dedecms Dedecms.

How do I fix CVE-2026-30643?

No fix has been published for CVE-2026-30643 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-30643 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30643 exists.

All Dedecms Dedecms vulnerabilities

Sources

Also known as GHSA-vc3q-w6jg-xcpj.

Is CVE-2026-30643 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free