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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| topthink/framework | composer | <= 6.0.13 |
The vulnerability arises from deserializing untrusted data that instantiates Psr6Cache with a malicious $pool. The __destruct method of Psr6Cache (if autosave is enabled) or framework logging workflows trigger the exploit chain. The injected think\log\Channel and think\log\driver\Socket objects configure a callable (Php::display) that executes arbitrary code. The PoC demonstrates this chain, and the advisory confirms the root cause as unsafe deserialization via Psr6Cache.
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