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
Published Apr 11, 2011
5.3
MEDIUMCVSS 4.0
EPSS 2.35%
Description
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.
Affected products
No data.
- 5.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.35% (0.02346) | 83.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.33% (0.02326) | 81.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.62% (0.00618) | 68.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.30% (0.00304) | 70.57th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.30% (0.00304) | 68.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.30% (0.00304) | 64.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01955) | 78.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01955) | 76.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01955) | 55.71th | v2 (v2022.01.01) |
References (16)
- http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/03/14/18 mailing-listx_refsource_MLISTPatch
- http://openwall.com/lists/oss-security/2011/03/15/11 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/43730 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44074 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.novell.com/security/cve/CVE-2011-1158.html x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:082 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/46867 vdb-entryx_refsource_BID
- https://bugzilla.novell.com/show_bug.cgi?id=680074 x_refsource_CONFIRMPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=684877 x_refsource_CONFIRMPatch
- https://code.google.com/p/feedparser/issues/detail?id=255 x_refsource_CONFIRM
- https://github.com/advisories/GHSA-4m72-rmm9-2qjr Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/feedparser/PYSEC-2011-21.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2011-1158
- https://web.archive.org/web/20150523054015/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2011:082/?name=MDVSA-2011:082
- https://web.archive.org/web/20210121212051/https://www.securityfocus.com/bid/46867
Change history (0)
No recorded changes yet.