CVE-2009-5065
feedparser Cross-site Scripting vulnerability
CVE-2009-5065 is a medium vulnerability (CVSS 4.3) in Mark Pilgrim Feedparser, published April 11, 2011. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.53%, the 91st percentile. Fixed in feedparser 5.0.
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-5065- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-5065- Updated
- 2026-11-02
EUVDEUVD-2011-0013 No score
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.
- Record
EUVD-2011-0013- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3mwg-gp5g-fv3q
feedparser Cross-site Scripting vulnerability
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.
- Record
GHSA-3mwg-gp5g-fv3q- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-3mwg-gp5g-fv3q
feedparser Cross-site Scripting vulnerability
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.
- Record
GHSA-3mwg-gp5g-fv3q- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2009-5065- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-5065 No score
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.
- Record
DEBIAN-CVE-2009-5065- Updated
- 2026-11-02
OSVPYSEC-2011-18 No score
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.
- Record
PYSEC-2011-18- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
feedparserPyPI |
through 4.1 | 5.0 |
feedparserDebian:12 |
before 5.0.1-1 | 5.0.1-1 |
feedparserDebian:13 |
before 5.0.1-1 | 5.0.1-1 |
feedparserDebian:14 |
before 5.0.1-1 | 5.0.1-1 |
feedparserPyPI |
before 5.0, plus listed versions 4.1 |
5.0 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | python-feedparser 5.0 - '/feedparser/feedparser.py' Cross-Site Scripting | 2011-04-05 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
References
securityfocus.com/bid/47177
bugzilla.redhat.com/show_bug.cgi?id=684877
secunia.com/advisories/44074
lists.opensuse.org/opensuse-updates/2011-04/msg00026.html
bugzilla.novell.com/show_bug.cgi?id=680074
mandriva.com/security/advisories?name=MDVSA-2011:082
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code.google.com/p/feedparser/issues/detail?id=195
support.novell.com/security/cve/CVE-2009-5065.html
nvd.nist.gov/vuln/detail/CVE-2009-5065
github.com/advisories/GHSA-3mwg-gp5g-fv3q
web.archive.org/web/20200228153921/http://www.securityfocus.com/bid/47177
security-tracker.debian.org/tracker/CVE-2009-5065