CVE-2018-25339

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.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

8.2 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Effective score

8.2 / 10 HIGH source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2018-25339

Linked Threat

CVE-2018-25339 — CVE-2018-25339

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-05-17 13:16:45 UTC

NVD last modified

2026-05-18 17:32:04 UTC

NVD CVSS v3.1

8.2 / 10 HIGH source: disclosure@vulncheck.com

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitability subscore

3.9 / 10

Impact subscore

4.2 / 10

EPSS score

0.0009 (probability of exploitation in next 30 days)

EPSS percentile

24.58% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD-assigned CWE(s): CWE-89 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2018-21858

Assigner

VulnCheck

Published

May 17, 2026, 12:11:42 PM

Updated

May 18, 2026, 5:52:21 PM

EUVD base score (CVSS 4.0)

8.8 / 10
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

EUVD-reported EPSS

0.0900

Vendors

Bylancer

Products

Zechat (1.5)

Aliases

GHSA-54vr-4j7c-rcvj

ENISA 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.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (6)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://bylancer.com tenable:bylancer.com
• https://nvd.nist.gov/vuln/detail/CVE-2018-25339 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2018-25339 tenable:www.cve.org
• https://www.exploit-db.com/exploits/44685 tenable:www.exploit-db.com
• https://www.first.org/epss/ tenable:www.first.org
• https://www.vulncheck.com/advisories/zechat-sql-injection-via-v-parameter-time-based-blind tenable:www.vulncheck.com

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• Mitigate RedSun Zero-Day Without A Patch | Qualys
  web:blog.qualys.com

  Key characteristics Because no official patch exists, traditional remediation workflows fall short. ... This blog walks through how Qualys VMDR detects RedSun across your environment and how TruRisk™ Eliminate enables teams to deploy targeted mitigations for measurable risk reduction, even without a vendor fix .

  2026-05-26 02:57 UTC
• CISA Warns of Exploited Microsoft Defender 0-Day Flaws
  web:cyberpress.org

  The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026.

  2026-05-26 02:57 UTC
• CVE-2025-59489 Patcher Tool - CVE Q&A - Unity Discussions
  web:discussions.unity.com

  👉 If you have any questions, join us in the CVE Discussions forums and use the CVE Q&A Topic. 👈 This page allows you access the patch for your games and apps. It will be updated as needed. Watch this topic via the bell icon to receive notifications when updates become available. Patching Tool Update: New builds are now available. See below for latest (and older) builds Patcher Version 1. ...

  2026-05-26 02:57 UTC
• Nvd - Cve-2025-55338
  web:nvd.nist.gov

  Information Technology Laboratory National Vulnerability Database Vulnerabilities

  2026-05-26 02:57 UTC
• Security Update Guide - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-05-26 02:57 UTC
• ArcGIS Server Security 2025 Update 2 Patch - Esri Support
  web:support.esri.com

  BUG-000153493 - Installing ArcGIS Server Security 2022 Update 1 Patch or Update 2 Patch on ArcGIS Server 10.8.1 affects the access to existing Workflow Manager (Classic) feature services. BUG-000153438 - ArcGIS Server services folders become inaccessible in the REST endpoint if it has a dot (.) in the name and the Security patches are installed.

  2026-05-26 02:57 UTC
• Cve-2025-55338
  web:vulmon.com

  Windows BitLocker contains a vulnerability stemming from a missing ability to patch ROM code. This flaw allows an unauthorized attacker with physical access to bypass BitLocker's security feature protections.

  2026-05-26 02:57 UTC
• CVE: Common Vulnerabilities and Exposures
  web:www.cve.org

  At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

  2026-05-26 02:57 UTC
• Oracle Critical Patch Update Advisory - October 2025
  web:www.oracle.com

  This Critical Patch Update contains 374 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at October 2025 Critical Patch Update: Executive Summary and Analysis.

  2026-05-26 02:57 UTC
• Patch Tuesday May 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-05-26 02:57 UTC

Only Available for Registered Users. Sign in to view.