![\"1746424962430-5c82d026-00c3-4cb8-9676-01565a8dd964.png\"](\"https:\/\/cdn.picui.cn\/vip\/2025\/10\/24\/68fae82b3c67f.png\")
<\/p>\n\u53cd\u5e8f\u5217\u5316\u53c8\u53eb\u5bf9\u8c61\u6ce8\u5165\uff0c\u5e8f\u5217\u5316\u5728\u5185\u90e8\u6ca1\u6709\u6f0f\u6d1e\uff0c\u6f0f\u6d1e\u4ea7\u751f\u662f\u5e94\u8be5\u7a0b\u5e8f\u5728\u5904\u7406\u5bf9\u8c61\u3001\u9b54\u672f\u51fd\u6570\u4ee5\u53ca\u5e8f\u5217\u5316\u76f8\u5173\u7684\u95ee\u9898\u5bfc\u81f4\u7684 \u5f53\u4f20\u7ed9 unserialize()\u7684\u53c2\u6570\u53ef\u63a7\u65f6\uff0c\u90a3\u4e48\u7528\u6237\u5c31\u53ef\u4ee5\u6ce8\u5165 payload,\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u7684\u65f6\u5019\u5c31\u53ef\u80fd\u89e6\u53d1\u5bf9\u8c61\u4e2d\u7684\u4e00\u4e9b\u9b54\u672f\u65b9\u6cd5<\/p>\n
\u5e8f\u5217\u5316 serialize<\/p>\n
\u5bf9\u8c61\u7684\u72b6\u6001\u4fe1\u606f\u8f6c\u6362\u4e3a\u53ef\u4ee5\u5b58\u50a8\u6216\u4f20\u8f93\u7684\u5f62\u5f0f\u7684\u8fc7\u7a0b \u5728\u5e8f\u5217\u5316\u671f\u95f4\uff0c\u5bf9\u8c61\u5c06\u5f53\u524d\u7684\u72b6\u6001\u5199\u5165\u5230\u4e34\u65f6\u6216\u6301\u4e45\u6027\u7684\u5b58\u50a8\u533a\uff0c\u5c06\u72b6\u6001\u4fe1\u606f\u4fdd\u5b58\u4e3a\u5b57\u7b26\u4e32<\/p>\n
\u53cd\u5e8f\u5217\u5316 unserialize<\/p>\n
\u5c06\u5e8f\u5217\u5316\u540e\u7684\u5b57\u7b26\u4e32\u8fd8\u539f\u6210\u5bf9\u8c61<\/p>\n
<?php<\/p>\n
class S{<\/p>\n
var $test = "pikachu";<\/p>\n
function __construct(){<\/p>\n
echo $this->test;<\/p>\n
}<\/p>\n
}<\/p>\n
$c = new S();<\/p>\n
echo serialize($c);<\/p>\n
O:1:"S":1:{s:4:"test";s:7:"pikachu";}<\/p>\n
\u4ee3\u8868\u4f9d\u6b21\u7684\u542b\u4e49<\/p>\n
O:\u4ee3\u8868 object<\/p>\n
1:\u4ee3\u8868\u5bf9\u8c61\u540d\u5b57\u957f\u5ea6\u4e3a\u4e00\u4e2a\u5b57\u7b26<\/p>\n
S:\u5bf9\u8c61\u7684\u540d\u79f0<\/p>\n
1:\u4ee3\u8868\u5bf9\u8c61\u91cc\u9762\u6709\u4e00\u4e2a\u53d8\u91cf<\/p>\n
s:\u6570\u636e\u7c7b\u578b(string)<\/p>\n
4:\u53d8\u91cf\u540d\u79f0\u7684\u957f\u5ea6<\/p>\n
test:\u53d8\u91cf\u540d\u79f0<\/p>\n
s:\u6570\u636e\u7c7b\u578b<\/p>\n
7:\u53d8\u91cf\u503c\u7684\u957f\u5ea6<\/p>\n
pikachu:\u53d8\u91cf\u503c<\/p>\n
\u5e8f\u5217\u5316\u4e5f\u4f1a\u628a\u53d8\u91cf\u7684\u5c5e\u6027\u5b58\u50a8\u5230\u5b57\u7b26\u4e32\u91cc<\/p>\n
<\/p>\n
var \u9ed8\u8ba4\u5c31\u662f public \u5c5e\u6027\uff0cprivate \u662fx00 \u7c7b\u540dx00 \u53d8\u91cf\u540d \u5728\u7f51\u9875\u662f\u4e0d\u663e\u793a\u7684<\/p>\n
protected \u00000*\u00000 \u53d8\u91cf\u540d\u5728\u7f51\u9875\u4e0a\u4e5f\u662f\u663e\u793a\u4e0d\u51fa\u6765\u7b26\u53f7\u7684\u3002\u9ed8\u8ba4\u662f\u7a7a\u767d<\/p>\n
\uff08\u5927\u5199 S\uff09\u8868\u793a protected \u7684\u5b57\u7b26\u4e32<\/p>\n
<?php<\/p>\n
class C1{<\/p>\n
public $public = "public";<\/p>\n
private $private="private";<\/p>\n
Protected $Protected="Protected";<\/p>\n
}<\/p>\n
$c = new C1();<\/p>\n
echo serialize($c);<\/p>\n
![\"1746425001337-b635ec82-3560-4e7a-ae8a-bc9604da7a67.png\"](\"https:\/\/cdn.picui.cn\/vip\/2025\/10\/24\/68fae82e0a53f.png\")
<\/p>\n
\u7f51\u9875\u4e0a\u4e0d\u4f1a\u663e\u793a\u5c5e\u6027\u7684\u7a7a\u767d\u7b26\u53f7\u7684<\/p>\n
<?php<\/p>\n
class C1{<\/p>\n
public $public = "public";<\/p>\n
private $private="private";<\/p>\n
Protected $Protected="Protected";<\/p>\n
}<\/p>\n
$c = new C1();<\/p>\n
echo serialize($c);<\/p>\n
file_put_contents(‘ser.txt’, serialize($c));<\/p>\n
ultraedit<\/p>\n
\u628a\u5e8f\u5217\u5316\u540e\u7684\u7ed3\u679c\u4fdd\u5b58\u5230 ser.txt \u4f7f\u7528\u7f16\u8f91\u5668\u53ef\u4ee5\u770b\u5230\u5c5e\u6027\u7684\u7a7a\u767d\u7b26\u53f7\u7528.\u4ee3\u66ff<\/p>\n
\u4e0d\u540c\u7c7b\u578b\u7684\u5b57\u6bcd<\/p>\n
a – array<\/p>\n
b – boolean<\/p>\n
d – double<\/p>\n
i – integer<\/p>\n
o – common object<\/p>\n
r – reference<\/p>\n
s – string<\/p>\n
C – custom object<\/p>\n
O – class<\/p>\n
N – null<\/p>\n
R – pointer reference<\/p>\n
U – unicode string<\/p>\n
\u53cd\u5e8f\u5217\u5316\u7684\u6570\u636e\u672c\u8d28\u4e0a\u6765\u8bf4\u662f\u6ca1\u6709\u5371\u5bb3\u7684\uff0c\u7528\u6237\u53ef\u63a7\u6570\u636e\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u662f\u5b58\u5728\u5371\u5bb3\u7684\uff0c\u53cd\u5e8f\u5217\u5316\u7684\u5371\u5bb3\uff0c\u5173\u952e\u8fd8\u662f\u5728\u4e8e\u53ef\u63a7\u6216\u4e0d\u53ef\u63a7<\/p>\n
\u4ee3\u7801<\/p>\n
<?php<\/p>\n
class S{<\/p>\n
var $test = "pikachu";<\/p>\n
function __construct(){<\/p>\n
echo $this->test;<\/p>\n
}<\/p>\n
}<\/p>\n
$c = new S();<\/p>\n
echo serialize($c);<\/p>\n
\u53cd\u5e8f\u5217\u5316\u540e\uff0c\u5982\u679c$test \u53ef\u63a7 \u7c7b\u5728\u5b9e\u4f8b\u5316\u7684\u65f6\uff0c\u503c\u4f1a\u4f20\u5165$this->test \u56e0\u4e3a\u662f echo \u5185\u5bb9\u662f\u76f4\u63a5\u8f93\u51fa\u4f1a\u9020\u6210 xss \u6f0f\u6d1e\u3002<\/p>\n
\u751f\u6210 payload \u4ee3\u7801<\/p>\n
<?php<\/p>\n
class S{<\/p>\n
var $test = "