CVE-2018-25339 Zechat 1.5 SQL Injection via v parameter (time-based blind)
Unauthenticated attackers can extract database information from Zechat via time-based blind SQL injection in the v parameter.
- 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-2018-25339?
CVE-2018-25339 is a high-severity SQL injection vulnerability in Bylancer Zechat, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Zechat 1.5 contains a SQL injection vulnerability in the v parameter that allows unauthenticated attackers to extract database information using time-based blind techniques. Attackers can exploit the v parameter with sleep-based blind injection to confirm vulnerability and extract data.
Weakness: CWE-89
Which versions are affected by CVE-2018-25339?
How do I fix CVE-2018-25339?
No fix has been published for CVE-2018-25339 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-2018-25339 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25339 exists.
Sources
Also known as GHSA-54vr-4j7c-rcvj.