CVE-2017-0195

Excel Web App vulnerability

CVSS

5.4

EPSS

3.8%

EPSS pct

89th

Exploited

No known

Microsoft Excel Services on Microsoft SharePoint Server 2010 SP1 and SP2, Microsoft Excel Web Apps 2010 SP2, Microsoft Office Web Apps 2010 SP2, Microsoft Office Web Apps Server 2013 SP1 and Office Online Server allows remote attackers to perform cross-site scripting and run script with local user privileges via a crafted request, aka "Microsoft Office XSS Elevation of Privilege Vulnerability."

Affected vendor

Microsoft

Affected product

Excel Web App

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2017-04-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2017-0195

Confirm whether Microsoft Excel Web App is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-0195.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-0195

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-0195 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2017-0195?

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