SQL Injection Vulnerability in Zechat 1.5 by Bylancer
CVE-2018-25339

8.8HIGH

Key Information:

Vendor

Bylancer

Status
Zechat
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25339?

Zechat 1.5 has a SQL injection vulnerability in the 'v' parameter, allowing unauthenticated attackers to exploit the system via time-based blind techniques. This SQL injection flaw enables the extraction of sensitive database information by employing sleep-based blind injection scenarios to confirm the presence of the vulnerability and retrieve data without proper authentication.

Affected Version(s)

Zechat 1.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25339 - Proof of Concept

References

https://www.exploit-db.com/exploits/44685
exploit
https://bylancer.com
product
https://www.vulncheck.com/advisories/zechat-sql-injection...
third-party-advisory

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Borna nematzadeh (L0RD) or borna.nematzadeh123@gmail.com
.