CVE-2026-21264 is a critical cross-site scripting (XSS) vulnerability affecting Microsoft Account, allowing an unauthenticated attacker to perform spoofing over a network. With a CVSS score of 9.3, this high-severity flaw requires user interaction but can lead to high confidentiality and integrity impacts. Despite its criticality, there is currently no public exploit code available, nor is it listed on the CISA KEV catalog, indicating no active exploitation. Community discussion and media coverage for this CVE are also minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:microsoft:account:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.