CVE-2011-1157: n/a vulnerability

CVE-2011-1157: 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 malformed XML comments.

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

Security readout for executives and security teams

This is an older cross-site scripting issue in Universal Feed Parser. If a vulnerable application parses hostile feeds and displays the resulting content in a browser, an attacker could inject script or HTML through malformed XML comments. Exposure is most likely in Python applications using feedparser 5.x before 5.0.1 to process untrusted RSS or Atom feeds, then display parsed feed data in user-facing or administrative web pages. Treat as a targeted legacy dependency cleanup item. Prioritize systems that ingest internet-controlled feeds and render results in portals, dashboards, or admin consoles. Mitigation focus: Upgrade Universal Feed Parser to 5.0.1 or later where applicable.; Apply vendor or distribution security updates for packaged python-feedparser.; Avoid rendering feed-derived HTML without output encoding and sanitization..

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.

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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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4Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
https://code.google.com/p/feedparser/issues/detail?id=254CVE 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

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