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CVE-2023-32309 affects PyMdown Extensions, specifically the Snippets extension used with Python-Markdown. In affected versions, the include file syntax can be abused to read arbitrary files from the host filesystem. An attacker can supply snippet directives such as --8<--"/etc/passwd" or --8<--"/proc/self/environ" to render the contents of those files in generated documentation. The base_path restriction intended to limit accessible files is bypassable via directory traversal using relative paths such as --8<-- "../../../../etc/passwd". The vulnerable logic is in get_snippet_path(self, path) in snippets.py (reported at lines 155-174). As a result, any readable file on the system where the plugin executes may be exposed if untrusted users can influence Snippets input.
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What an attacker gets, and what they’ve been doing with it.
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../. Run the rendering process with least-privilege filesystem permissions so that only non-sensitive files are readable by the service account.Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.