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Description

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.

PUBLISHED Reserved 2026-05-15 | Published 2026-05-15 | Updated 2026-05-18 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Improper Control of Generation of Code ('Code Injection')

Product status

2.2.6-6
affected

Credits

Eren Saraç finder

References

www.exploit-db.com/exploits/49838 (ExploitDB-49838) exploit

www.schlix.com/ (Official Product Homepage) product

www.schlix.com/downloads/schlix-cms/schlix-cms-v2.2.6-6.zip (Product Reference) product

www.vulncheck.com/...te-code-execution-via-core-blockmanager (VulnCheck Advisory: Schlix CMS 2.2.6-6 Remote Code Execution via core.blockmanager) third-party-advisory

cve.org (CVE-2021-47964)

nvd.nist.gov (CVE-2021-47964)

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