Authenticated command execution via customCode evaluation
Published Sep 3, 2026 · Updated Sep 3, 2026
OS command injection in CRMEB 6.0 allows remote authenticated users to execute commands through the custom scheduled-task save endpoint. The save handler passes the customCode field to PHP eval after applying an isSafePhpCode denylist that does not contain executable input. Reachability requires high-privilege administration access, APP_DEBUG enabled, and the configured developer password; commands run with the web process's access.
Summary
What happened
OS command injection in CRMEB 6.0 allows remote authenticated users to execute commands through the custom scheduled-task save endpoint. The save handler passes the customCode field to PHP eval after applying an isSafePhpCode denylist that does not contain executable input. Reachability requires high-privilege administration access, APP_DEBUG enabled, and the configured developer password; commands run with the web process's access.
The record
- CVE
- CVE-2026-85040
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Vendor
- CRMEB
- Product
- CRMEB
- Classifications
- CWE-78, CWE-77, T1059
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 3, 2026CVE publishedPublication date reported by the CVE source.
- Sep 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CRMEB Backend custom scheduled task functionality RCEproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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