CVE-2021-43421
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 42.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 42.78% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- std42/elfinder
- Source
- cve@mitre.org
EPSS 42.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/Studio-42/elFinder/issues/3429Exploit, Issue Tracking, Third Party Advisory
- https://twitter.com/infosec_90/status/1455180286354919425Third Party Advisory
- https://github.com/Studio-42/elFinder/issues/3429Exploit, Issue Tracking, Third Party Advisory
- https://twitter.com/infosec_90/status/1455180286354919425Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.