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CVE-2022-31358 is a reflected cross-site scripting vulnerability in Proxmox Virtual Environment (PVE) prior to v7.2-3, specifically affecting the API Inspector functionality exposed under /api2/html/. When a request is made to a non-existent endpoint beneath /api2/html/, user-controlled path data is reflected into an HTML href attribute without proper escaping. This allows crafted input to break out of the attribute context and inject attacker-controlled script or HTML into the response. The issue is described as post-authentication because successful exploitation requires the victim to be logged into the PVE web interface in the same browser session.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A post-auth reflected XSS vulnerability in the Proxmox VE API inspector HTML output, caused by improper escaping of user-controlled request path data.
A post-auth reflected XSS vulnerability in the Proxmox VE API inspector HTML output, caused by improper escaping of user-controlled input in the request path.
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.