Risk Letters

Exploited vulnerability

CVE-2021-48013

TLP:CLEAR

Weaver e-cology Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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.

Facts

  • Vendor: Weaver Network Co., Ltd.
  • Product: E-cology
  • EPSS (probability of exploitation within 30 days): 0.7 %
  • First known exploitation: 22 October 2026
  • First seen by Risk Letters: 22 October 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD