Path Traversal in Microweber
CVE-2020-28337
A directory traversal issue in the Utils/Unzip module in Microweber through 1.1.20 allows an authenticated attacker to gain remote code execution via the backup restore feature. To exploit the vulnerability, an attacker must have the credentials of an administrative user, upload a maliciously constructed ZIP file with file paths including relative paths (i.e., ../../), move this file into the backup directory, and execute a restore on this file.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.166 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.166 · newest: 0.166 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/microweber/microweber/commit/777ee9c3e7519eb3672c79ac41066175b2001b50 (Patch, Third Party Advisory)
- sl1nki.page/advisories/CVE-2020-28337 (Third Party Advisory)
- sl1nki.page/blog/2021/02/01/microweber-zip-slip (Exploit, Patch, Third Party Advisory)
- packetstormsecurity.com/files/162514/Microweber-CMS-1.1.20-Remote-Code-Executio… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28337?
- CVE-2020-28337 is a high-severity vulnerability in Microweber, classified under Path Traversal. CVSS score: 7.2/10. Published 2021-02-15.
- How severe is CVE-2020-28337?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2020-28337 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.