Linux admins,

Before heading into the weekend, there are a few developments worth a quick review across Linux environments. Two involve software with privileged access, and one is a reminder that web-facing applications remain a common target when known vulnerabilities go unpatched.

 

Yours in Open Source,

Dv Signature Newsletter 2026 Esm W100

Dave Wreski, Founder

Joomla JCE Vulnerability Added to CISA KEV

A critical remote code execution flaw affecting the Joomla Content Editor (JCE) extension has been added to CISA's Known Exploited Vulnerabilities catalog. Organizations running Joomla on Linux servers should verify whether JCE is installed and ensure exposed instances are fully patched.

→ Read more about the Joomla JCE vulnerability

Malicious JetBrains Plugins Discovered

Researchers identified malicious plugins targeting JetBrains development environments. Because IDE plugins often have access to source code, credentials, and development workflows, reviewing approved extensions and plugin sources is worth the effort.

→ Learn more about the JetBrains plugin supply chain threat

SimpleHelp Authentication Bypass Raises Concerns

A recently disclosed authentication bypass vulnerability could allow unauthorized access to vulnerable SimpleHelp deployments. Remote support platforms frequently occupy trusted positions inside networks, making timely updates particularly important.

→ Review details on the SimpleHelp vulnerability