RCE in Std42 Elfinder
CVE-2021-32682
elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Several vulnerabilities affect elFinder 2.1.58. These vulnerabilities can allow an attacker to execute arbitrary code and commands on the server hosting the elFinder PHP connector, even with minimal configuration. The issues were patched in version 2.1.59. As a workaround, ensure the connector is not exposed without authentication.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.699 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.699 · newest: 0.699 · change: 0.000
Affected products
- Std42 Elfinder
- Studio-42 Elfinder — versions = 2.1.58
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/Studio-42/elFinder/security/advisories/GHSA-wph3-44rj-92pr (Third Party Advisory)
- github.com/Studio-42/elFinder/commit/a106c350b7dfe666a81d6b576816db9fe0899b17 (Patch, Third Party Advisory)
- packetstormsecurity.com/files/164173/elFinder-Archive-Command-Injection.html (Exploit, VDB Entry, Third Party Advisory)
- blog.sonarsource.com/elfinder-case-study-of-web-file-manager-vulnerabilities/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32682?
- CVE-2021-32682 is a critical-severity vulnerability in Std42 Elfinder, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-06-14.
- How severe is CVE-2021-32682?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-32682 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.