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CVE-2026-58647 is an improper neutralization of input during web page generation vulnerability in Microsoft Power BI Report Server. The issue is a cross-site scripting flaw that affects Power BI Report Server deployments, including versions earlier than 15.0.1121.120. Successful exploitation requires an authorized attacker to deliver crafted input that is rendered by the application in a victim’s browser, enabling attacker-controlled script execution in the context of the web application. Microsoft classifies the resulting security impact as spoofing over a network.
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No public exploit code observed for this vulnerability.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A spoofing vulnerability affecting Microsoft PowerBI Report Server.
A vulnerability in Microsoft Power BI Report Server involving improper neutralization of input during web page generation (XSS), allowing an authorized attacker to perform spoofing over a network.
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.