CVE intelligence and bounded remediation

CVE-2022-1544 — Luya Yii-Helpers security vulnerability

High CVSS 8

Formula Injection/CSV Injection due to Improper Neutralization of Formula Elements in CSV File in GitHub repository luyadev/yii-helpers prior to 1.2.1. Successful exploitation can lead to impacts such as client-sided command injection, code execution, or remote ex-filtration of contained confidential data.

Severity
High
CVSS
8 (3.0)
Published
2022-05-01
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-1236

Affected products

  • luya / yii-helpers

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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