Zechat 1.5 contains a SQL injection vulnerability in the hashtag parameter that allows unauthenticated attackers to extract database information using union-based techniques. Attackers can exploit the hashtag parameter with union-based payloads to retrieve table and column names.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Bylancer Zechat affected
Version Status Constraints
1.5 affected —

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Project Subscriptions

Vendors Products
Zechat Project Subscribe
Zechat Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://bylancer.com cve-icon cve-icon
https://www.exploit-db.com/exploits/44685 cve-icon cve-icon
https://www.vulncheck.com/advisories/zechat-sql-injection-via-hashtag-parameter cve-icon cve-icon
History

Sun, 17 May 2026 12:30:00 +0000

Type Values Removed Values Added
Description Zechat 1.5 contains a SQL injection vulnerability in the hashtag parameter that allows unauthenticated attackers to extract database information using union-based techniques. Attackers can exploit the hashtag parameter with union-based payloads to retrieve table and column names.
Title Zechat 1.5 SQL Injection via hashtag parameter
First Time appeared Zechat Project
Zechat Project zechat
Weaknesses CWE-89
CPEs cpe:2.3:a:zechat_project:zechat:1.5:*:*:*:*:*:*:*
Vendors & Products Zechat Project
Zechat Project zechat
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 8.8, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-17T12:11:41.616Z

Reserved: 2026-05-17T12:06:26.102Z

Link: CVE-2018-25338

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-17T13:16:45.590

Modified: 2026-05-17T13:16:45.590

Link: CVE-2018-25338

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-17T13:30:02Z

Weaknesses