CVE intelligence and bounded remediation

CVE-2020-37151 — Ciprianmp Phpmychat-Plus security vulnerability

High CVSS 8.8

phpMyChat Plus 1.98 contains a SQL injection vulnerability in the deluser.php page through the pmc_username parameter that allows attackers to manipulate database queries. Attackers can exploit boolean-based, error-based, and time-based blind SQL injection techniques to extract sensitive database information by crafting malicious payloads in the username field.

Severity
High
CVSS
8.8 (4.0)
Published
2026-02-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-89

Affected products

  • ciprianmp / phpmychat-plus / 1.98

Matched remediation archetype

SQL and data-query injection

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Check exposure

  • Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
  • Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
  • Check both direct queries and second-order use of previously stored values.

Remediate safely

  • Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
  • Remove raw query concatenation and give the application account only the tables and operations it requires.
  • Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.

Authoritative sources

Complete CVE record and remediation plan

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