Critical severity · published Jun 24, 2021
CVE-2020-21787
CRMEB 3.1.0+ is vulnerable to File Upload Getshell via /crmeb/crmeb/services/UploadService.php
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
CRMEB 3.1.0+ is vulnerable to File Upload Getshell via /crmeb/crmeb/services/UploadService.php.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CR
Crmeb · Crmeb
3.1.0+ · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-21787
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-21787
Exploit
https://gitee.com/ZhongBangKeJi/CRMEB/issues/I18MGD
More from Crmeb
9.8
CVE-2026-1202
CRMEB LoginController.php appleLogin improper authentication
9.8
CVE-2025-25763
crmeb CRMEB-KY v5.4.0 and before has a SQL Injection vulnerability at getRead() in /system/SystemDatabackupServices.php
9.8
CVE-2023-3234
Zhong Bang CRMEB PublicController.php put_image deserialization
9.8
CVE-2023-3232
Zhong Bang CRMEB Image Upload app_auth deserialization
9.8
CVE-2023-30185
CRMEB v4.4 to v4.6 was discovered to contain an arbitrary file upload vulnerability via the component \attachment\SystemAttachmentServices.php
