Quick answers
- Is CVE-2016-20097 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2016-20097 being exploited in the wild.
- How severe is CVE-2016-20097?
- High severity, with a CVSS score of 7.5, published 11 August 2026.
- Which products and versions are affected?
- Weaver E-cology 8.0.
- Is there a fix for CVE-2016-20097?
- 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-2016-20097 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2016-20097?
- 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 vulnerability is a SQL injection (CWE-89) in the SignatureDownLoad servlet where the markId GET parameter is concatenated unsanitized into a SQL query. Attackers exploit this by injecting a UNION SELECT payload to control the markPath value returned by the query, allowing them to specify arbitrary filesystem paths. The servlet then reads and streams back files accessible to the application server process. No authentication is required; the vulnerability is network-reachable via HTTP GET requests. Remediation materials exist but the specific patched version is unclear.
Affected products
- Weaver E-cology 8.0
Timeline
- 2016: disclosed: Original disclosure (WooYun-2016-0198158)
- 2023-10-18: exploited: Exploitation evidence first observed by Shadowserver Foundation
- 2026-08-11: advisory: Published to NVD and VulnCheck