CVE-2011-1158: n/a vulnerability

CVE-2011-1158: Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka feedparser or pytho...

Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) 5.x before 5.0.1 allows remote attackers to inject arbitrary web script or HTML via an unexpected URI scheme, as demonstrated by a javascript: URI.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:14 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-1158 is an older cross-site scripting issue in Universal Feed Parser. If a web application trusted feedparser output from untrusted feeds, hostile feed content could become script or HTML in a user’s browser. Exposure is most likely in legacy Python applications or Linux packages using feedparser 5.x before 5.0.1 to process external RSS or Atom feeds and display parsed content in browsers. Non-web backend-only parsing is lower risk. Treat this as a targeted legacy cleanup item, not an emergency from the available evidence. Prioritize internet-facing applications that render third-party feeds to authenticated or public users. Mitigation focus: Upgrade Universal Feed Parser/python-feedparser to 5.0.1 or later where present.; Apply relevant distribution security updates from vendors such as openSUSE, Novell, Red Hat, or Mandriva.; Check current vendor guidance before changing legacy packaged dependencies..

Prepared: Jun 24, 2026, 13:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 11, 2011, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0Timeline events

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4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://code.google.com/p/feedparser/issues/detail?id=255CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=684877CVE reference · x_refsource_CONFIRM
https://bugzilla.novell.com/show_bug.cgi?id=680074CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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