Is CVE-2021-48013 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2021-48013 being exploited in the wild.

How severe is CVE-2021-48013?

High severity, with a CVSS score of 7.5, published 22 October 2026.

Is there a fix for CVE-2021-48013?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2021-48013 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2021-48013?

Check whether you run Weaver E-cology at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2021-48013: Weaver E-cology path traversal in FileDownload

CVE-2021-48013 · Severity: high · CVSS 7.5 · Published 2026-10-22

Weaver E-cology is a workflow and document management system used by organizations to manage business processes. An unauthenticated attacker can read arbitrary files from the server by exploiting a path traversal flaw in the FileDownload endpoint, potentially exposing sensitive configuration files and application data.

Technologies: Weaver E-cology. Vendors: Weaver.

Quick answers

Is CVE-2021-48013 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2021-48013 being exploited in the wild.
How severe is CVE-2021-48013?: High severity, with a CVSS score of 7.5, published 22 October 2026.
Which products and versions are affected?: Weaver E-cology 8.0.
Is there a fix for CVE-2021-48013?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-48013 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2021-48013?: Check whether you run Weaver E-cology at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The /weaver/ln.FileDownload endpoint fails to properly validate the fpath parameter, allowing directory traversal sequences (../) to access files outside the intended directory. An unauthenticated remote attacker can craft GET requests with traversal patterns to retrieve sensitive files such as WEB-INF/web.xml. The vulnerability is network-accessible with no authentication or user interaction required.

Affected products

Weaver E-cology 8.0

Timeline

2026-10-22: disclosed
2023-10-18: exploited: Shadowserver Foundation observed exploitation

References

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