CVE-2009-5065

Feedparser vulnerability

CVSS

4.3

EPSS

4.5%

EPSS pct

91th

Exploited

No known

Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0 allows remote attackers to inject arbitrary web script or HTML via vectors involving nested CDATA stanzas.

Affected vendor

Mark Pilgrim

Affected product

Feedparser

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2011-04-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 4.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2009-5065

Confirm whether Mark Pilgrim Feedparser is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-5065.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-5065

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-5065 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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