CVE-2026-70306
CVSS v3
9.3
CRITICAL
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Technical details
- Published
- 2026-08-11
- Last Modified
- 2026-08-11
Frequently asked questions
What is CVE-2026-70306?
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Is CVE-2026-70306 actively exploited?
Active exploitation of CVE-2026-70306 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-70306?
CVE-2026-70306 has a CVSS v3 base score of 9.3 (CRITICAL severity).
Is CVE-2026-70306 affecting your environment?
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