RCE in Zhongbangkeji Crmeb
CVE-2026-85040
A weakness has been identified in ZhongBangKeJi CRMEB up to 6.0.0. Affected by this vulnerability is the function eval of the file /adminapi/system/crontab/save of the component Custom Scheduled Task Feature. This manipulation of the argument customCode causes os command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Vendor documents this as deliberate debug-only behavior. But isSafePhpCode blacklist offers no real RCE containment.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.021 (81.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.021 · change: +0.005
Affected products
- Zhongbangkeji Crmeb — versions 6.0
Weakness classification (CWE)
References
- github.com/xiaohai12138-1/cve/blob/main/CRMEB/CRMEB Backend custom scheduled t… (exploit)
- vuldb.com/cve/CVE-2026-85040 (third-party-advisory)
- vuldb.com/submit/887316 (third-party-advisory)
- vuldb.com/vuln/398300 (technical-description, vdb-entry)
- vuldb.com/vuln/398300/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-85040?
- CVE-2026-85040 is a medium-severity vulnerability in Zhongbangkeji Crmeb, classified under Command Injection. CVSS score: 4.7/10. Published 2026-09-03.
- How severe is CVE-2026-85040?
- Medium severity. CVSS v3 base score is 4.7 out of 10.