CVE-2021-48013 (GCVE-0-2021-48013)

Vulnerability from cvelistv5 – Published: 2026-10-22 10:57 – Updated: 2026-10-22 10:57 X_Known Exploited Vulnerability
VLAI Previdian
Title
Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload
Summary
Weaver E-cology 8.0 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files through the fpath parameter of the /weaver/ln.FileDownload endpoint. Attackers can send crafted GET requests with directory traversal sequences in fpath to retrieve sensitive files such as WEB-INF/web.xml from the server. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Weaver Network Co., Ltd. E-cology Affected: 8.0 (custom)
    cpe:2.3:a:weaver:e-cology:8.0:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2021-04-23 00:00
Credits
The Shadowserver Foundation
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e8cfac57-9476-4716-bca2-ce8bde310da4

Vulnerability ID: CVE-2021-48013

Status: Confirmed

Status Updated: 2026-10-22 11:10 UTC

Exploited: Yes

Timestamps
First Seen: 2026-10-22
Asserted: 2026-10-22
Scope
Notes: Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload | Affected: Weaver Network / E-cology | CVSS: 8.7 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload
Cve Id CVE-2021-48013
Vendor Weaver Network
Ghsa Id None
Product E-cology
Added Date 2026-10-22T11:10:52.538Z
Cvss Score 8.7
Epss Score None
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile None
Used In Malware unknown
Vulnerability Id CVE-2021-48013
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-23 12:00 UTC | Updated: 2026-10-23 12:00 UTC
Show details on NVD website
To clipboard 

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}



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