Affects Microsoft Power BI, a widely deployed enterprise BI platform; high-severity XSS can enable user impersonation, session theft and social-engineering at scale.
CVE-2026-58647
Authenticated XSS in Microsoft Power BI enabling UI spoofing and session abuse.
Is CVE-2026-58647 being exploited?
Not confirmed. CVE-2026-58647 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-58647?
CVE-2026-58647 is rated High with a CVSS score of 8.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58647?
Yes. A fix has been recorded for CVE-2026-58647. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58647 affect?
CVE-2026-58647 affects Microsoft Power BI (web service), Power BI Report Server (web interface). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58647?
Apply vendor patch when released; restrict public report access; enforce CSP and XSS protections.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated cross-site scripting allows attacker-supplied script to run in users' browsers, enabling UI spoofing, session token theft, and actions as the victim.
Patch when possible
- affected>= 1.6.0 and < 1.26.9682.1442
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.