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CVE-2020-5741 is an insecure deserialization vulnerability in Plex Media Server on Windows. Plex Media Server versions earlier than 1.19.3 deserialize untrusted data in a manner that allows a remote authenticated attacker to execute arbitrary Python code in the context of the Plex Media Server process.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module (modules/exploits/windows/http/plex_unpickle_dict_rce.rb) that exploits CVE-2020-5741, a remote code execution vulnerability in Plex Media Server for Windows (versions prior to 1.19.3). The exploit leverages an unsafe Python pickle.load operation on a Dict file in a user-created photo library. The attacker must be authenticated (possess a valid X-Plex-Token) and the target server must have Camera Upload enabled. The module creates a new photo library, uploads a maliciously crafted Dict file containing a Python Meterpreter reverse shell payload, changes the Plex LocalAppDataPath to trigger unpickling, and restarts the server to execute the payload. The exploit is weaponized, allowing customizable payloads via Metasploit, and provides remote code execution as the Plex user. The main attack vector is network-based, targeting the Plex HTTP API endpoints. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously exploited remote-code-execution vulnerability in Plex media software that was linked to the LastPass breach and malware installation.
A Plex Media Server vulnerability reportedly exploited as the initial access vector into a LastPass developer's home network, enabling a subsequent pivot into LastPass's corporate environment.
A Plex Media Server vulnerability rated CVSS 7.2 that was used to compromise an employee's home computer in the 2022 LastPass breach, after which attackers installed keylogging malware.
A Plex Media Server vulnerability with a CVSS score of 7.2 that was used to compromise a LastPass employee's home computer before attackers implanted keylogger malware, contributing to the August 2022 LastPass breach.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.