CVE-2016-20097 Weaver E-cology 8.0 SQL Injection File Read via SignatureDownLoad
Unauthenticated attackers can exploit SQL injection in the SignatureDownLoad servlet to read arbitrary files, including sensitive configuration data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-20097?
CVE-2016-20097 is a high-severity SQL injection vulnerability in Weaver Network Co., Ltd. E-cology 8.0, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Weaver (Fanwei) E-cology 8.0 contains a SQL injection vulnerability in the SignatureDownLoad servlet that allows unauthenticated remote attackers to read arbitrary files by injecting a UNION SELECT payload into the markId GET parameter, which is concatenated unsanitized into a SQL query. Attackers can control the markPath value returned by the query to supply an attacker-controlled filesystem path, causing the servlet to read and stream back arbitrary files accessible to the application server process, including sensitive configuration files containing database credentials. Disclosure materials indicate that this vulnerability has been remediated, but it's unclear which version resolved the issue. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18 (UTC).
Weakness: CWE-89
Which versions are affected by CVE-2016-20097?
How do I fix CVE-2016-20097?
No fix has been published for CVE-2016-20097 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2016-20097 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20097 exists.
Sources
Also known as GHSA-8r52-43hm-h433.