CVE-2021-30461
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the...
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
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
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
- Record
CVE-2021-30461- 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-94
- Updated
- 2026-11-02
CVE List No score
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
- Record
CVE-2021-30461- Updated
- 2026-11-02
EUVDEUVD-2021-17386 No score
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
- Record
EUVD-2021-17386- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h672-6987-6r49 No score
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the...
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
- Record
GHSA-h672-6987-6r49- Weakness
- CWE-94
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | VoipMonitor <24.61 - Remote Code Execution | |
| PoC in GitHub | Al1ex/CVE-2021-30461 | 2021-05-11 |
| PoC in GitHub | Vulnmachines/CVE-2021-30461 | 2021-05-07 |
| PoC in GitHub | daedalus/CVE-2021-30461 | 2021-05-06 |
| PoC in GitHub | puckiestyle/CVE-2021-30461 | 2021-07-14 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30461 is a critical vulnerability (CVSS 9.8) in Voipmonitor, published May 29, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 36.6%, the 98th percentile. No source names a fixed version.