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CVE-2021-23394 is a remote code execution vulnerability affecting studio-42/elfinder before 2.1.58, including confirmed exploitation against 2.1.57. The issue allows an attacker to upload a crafted .phar file containing PHP code and then trigger server-side execution of that code. The provided content states that exploitation succeeds when the uploaded file is accessible and the server parses .phar files as PHP. In practical terms, the flaw is an unrestricted dangerous file upload condition that can be turned into code execution through elFinder's upload functionality and subsequent retrieval/execution of the uploaded payload.
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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.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in elFinder v2.1.57, allowing attackers to upload and execute malicious .phar files, leading to arbitrary code execution on the server. The flaw is fully exploitable and has been validated with automated and manual testing.
A remote code execution vulnerability in elFinder affecting versions prior to 2.1.58, involving .phar file handling.
A remote code execution vulnerability affecting studio-42/elfinder.
A remote code execution vulnerability affecting studio-42/elfinder.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.