CVE-2021-43421
elFinder Unrestricted File Upload vulnerability
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
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 File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
CVE-2021-43421- 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
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
CVE-2021-43421- Updated
- 2026-11-02
EUVDEUVD-2022-1864 No score
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
EUVD-2022-1864- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x4jx-hjwf-gc99
elFinder Unrestricted File Upload vulnerability
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
GHSA-x4jx-hjwf-gc99- 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
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
CVE-2021-43421- 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
OSVGHSA-x4jx-hjwf-gc99
elFinder Unrestricted File Upload vulnerability
A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.
- Record
GHSA-x4jx-hjwf-gc99- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
studio-42/elfinderPackagist |
2.0.4 up to 2.1.60 | 2.1.60 |
studio-42/elfinderPackagist |
2.0.4 up to 2.1.60, plus listed versions 2.0.52.0.62.0.72.0.82.0.9 Show 45 moreShow less2.1.02.1.12.1.102.1.112.1.122.1.132.1.142.1.152.1.162.1.172.1.182.1.192.1.22.1.202.1.212.1.222.1.232.1.242.1.252.1.262.1.272.1.282.1.292.1.32.1.302.1.312.1.322.1.332.1.342.1.352.1.362.1.372.1.382.1.392.1.42.1.402.1.412.1.422.1.432.1.442.1.452.1.462.1.472.1.482.1.49 |
2.1.60 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Studio-42 elFinder <2.1.60 - Arbitrary File Upload |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43421 is a critical vulnerability (CVSS 9.8) in Std42 Elfinder, published April 7, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 42.8%, the 98th percentile. Fixed in studio-42/elfinder 2.1.60.
References
Left out here: 15 versions. The JSON record has them.