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  <author>
    <name>Byron</name>
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  <rights>All rights reserved 2026, Byron</rights>
  <subtitle>
    <![CDATA[Web Application Security Research & Exploit Development]]>
  </subtitle>
  <title>Byron</title>
  <updated>2026-07-07T12:58:37.053Z</updated>
  <entry>
    <author>
      <name>Byron</name>
    </author>
    <category term="web-security" scheme="https://byroins.github.io/categories/web-security/"/>
    <category term="sql-injection" scheme="https://byroins.github.io/categories/web-security/sql-injection/"/>
    <category term="sqli-labs" scheme="https://byroins.github.io/tags/sqli-labs/"/>
    <category term="sql-injection" scheme="https://byroins.github.io/tags/sql-injection/"/>
    <category term="information_schema" scheme="https://byroins.github.io/tags/information-schema/"/>
    <id>https://byroins.github.io/2026/07/07/web-security/sql-injection/2026-07-07-character-type-union-injection/</id>
    <link href="https://byroins.github.io/2026/07/07/web-security/sql-injection/2026-07-07-character-type-union-injection/"/>
    <published>2026-07-07T14:00:00.000Z</published>
    <summary>
      <![CDATA[<blockquote>
<p>Environment: PHP 7.3.4 + MySQL 5.7.26</p>
</blockquote>
<blockquote>
<p>Lab: sqli-labs Less-1, Less-3, &amp;]]>
    </summary>
    <title>Character Type Union Injection</title>
    <updated>2026-07-07T12:58:37.053Z</updated>
  </entry>
  <entry>
    <author>
      <name>Byron</name>
    </author>
    <category term="web-security" scheme="https://byroins.github.io/categories/web-security/"/>
    <category term="sql-injection" scheme="https://byroins.github.io/categories/web-security/sql-injection/"/>
    <category term="sqli-labs" scheme="https://byroins.github.io/tags/sqli-labs/"/>
    <category term="sql-injection" scheme="https://byroins.github.io/tags/sql-injection/"/>
    <category term="information_schema" scheme="https://byroins.github.io/tags/information-schema/"/>
    <id>https://byroins.github.io/2026/07/06/web-security/sql-injection/2026-07-06-union-injection/</id>
    <link href="https://byroins.github.io/2026/07/06/web-security/sql-injection/2026-07-06-union-injection/"/>
    <published>2026-07-06T14:00:00.000Z</published>
    <summary>
      <![CDATA[<blockquote>
<p>Environment: PHP 7.3.4 + MySQL 5.7.26<br>Lab: sqli-labs Less-2</p>
</blockquote>
<h2 id="1-0-前置基础"><a href="#1-0-前置基础"]]>
    </summary>
    <title>Union Injection</title>
    <updated>2026-07-07T12:29:10.642Z</updated>
  </entry>
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