CVE-2018-25339

HighPublic PoC

Published: 17 May 2026

Published

17 May 2026

Modified

18 May 2026

KEV Added

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Patch

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CVSS Score v4 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Score 0.0027 18.3th percentile

Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2018-25339 is a high-severity SQL Injection (CWE-89) vulnerability in Bylancer (inferred from references). Its CVSS base score is 8.8 (High).

Operationally, ranked at the 18.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2018-21858

Vulnerability details

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.