CVE-2021-48013 Weaver E-cology 8.0 Unauthenticated Path Traversal via ln.FileDownload

High 8.7 Published 22 Oct 2026 Updated 29 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2021-48013?

CVE-2021-48013 is a high-severity vulnerability in Weaver Network Co., Ltd. E-cology, published on 22 Oct 2026.

Official description

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.

Weakness: CWE-22

Which versions are affected by CVE-2021-48013?

How do I fix CVE-2021-48013?

No fix has been published for CVE-2021-48013 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-48013 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-48013 exists.

Sources

Also known as GHSA-ggh3-mmrr-r9c4.