CVE-2015-2522

Sharepoint Foundation vulnerability

CVSS

3.5

EPSS

10.3%

EPSS pct

95th

Exploited

No known

Cross-site scripting (XSS) vulnerability in Microsoft SharePoint Foundation 2013 SP1 allows remote authenticated users to inject arbitrary web script or HTML via crafted content, aka "Microsoft SharePoint XSS Spoofing Vulnerability."

Affected vendor

Microsoft

Affected product

Sharepoint Foundation

CVSS vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2015-09-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 10.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2015-2522

Confirm whether Microsoft Sharepoint Foundation is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-2522.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-2522

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-2522 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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