CVE-2008-5026

Sharepoint Server vulnerability

CVSS

3.5

EPSS

8.8%

EPSS pct

95th

Exploited

No known

Microsoft SharePoint uses URLs with the same hostname and port number for a web site's primary files and individual users' uploaded files (aka attachments), which allows remote authenticated users to leverage same-origin relationships and conduct cross-site scripting (XSS) attacks by uploading HTML documents.

Affected vendor

Microsoft

Affected product

Sharepoint Server

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2008-11-10

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 8.8% reflects a lower 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-2008-5026

Confirm whether Microsoft Sharepoint Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2008-5026.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-5026

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-5026 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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