High 8.8Published May 15, 2026

CVE-2021-47964Schlix CMS 2.2.6-6 Remote Code Execution via core.blockmanager

Updated under an hour ago (Oct 28, 2026, 11:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Schlix CMS

Exploited in the last 30 days

Schlix CMS 2.2.6-6 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary PHP code by uploading malicious extension packages through the block manager. Attackers can upload a crafted ZIP file containing PHP code in the packageinfo.inc file and trigger execution by accessing the About tab of the installed extension.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Schlix Schlix CMS schlix:cms (from the name)	2.2.6-6	CNA record

References

References

https://www.exploit-db.com/exploits/49838	exploit
https://www.schlix.com/	product
https://www.schlix.com/downloads/schlix-cms/schlix-cms-v2.2.6-6.zip	product
https://www.vulncheck.com/advisories/schlix-cms-6-remote-code-execution-via-core-blockmanager	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.