CVE-2020-28871
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute...
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
- Record
CVE-2020-28871- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
- Record
CVE-2020-28871- Updated
- 2026-11-02
EUVDEUVD-2020-21262 No score
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
- Record
EUVD-2020-21262- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pcjf-xrw4-4cc2
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute...
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
- Record
GHSA-pcjf-xrw4-4cc2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.
- Record
CVE-2020-28871- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Monitorr unauthenticated Remote Code Execution (RCE) | 2020-11-16 |
| Nuclei | Monitorr 1.7.6m - Unauthenticated Remote Code Execution |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28871 is a critical vulnerability (CVSS 9.8) in Monitorr, published February 10, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 85.9%, the 99th percentile. No source names a fixed version.
References
lyhinslab.org/index.php/2020/09/12/how-the-white-box-hacking-works-authorization-bypass-and-remote-code-execution-in-monitorr-1-7-6
exploit-db.com/exploits/48980
packetstormsecurity.com/files/163263/Monitorr-1.7.6m-Bypass-Information-Disclosure-Shell-Upload.html
nvd.nist.gov/vuln/detail/CVE-2020-28871
github.com/advisories/GHSA-pcjf-xrw4-4cc2