Is CVE-2014-3146 in the CISA KEV catalog?

No. CVE-2014-3146 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-3146?

CVE-2014-3146 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2014-3146?

CVE-2014-3146 has an EPSS score of 6.33% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-3146?

Upgrade lxml on debian 11 to 3.3.5-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2014-3146

MEDIUMEPSS 93th pctl

6.1

CVSS v3

NVD

Description

Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote attackers to conduct cross-site scripting (XSS) attacks via control characters in the link scheme to the clean_html function.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

lxmlDebian

Fixed in:3.3.5-1CVE-2014-3146

lxmlUbuntu

Fixed in:3.3.3-1ubuntu0.1USN-2217-1

python-lxmlUbuntu

Fixed in:3.3.3-1ubuntu0.1USN-2217-1

python3-lxmlUbuntu

Fixed in:3.3.3-1ubuntu0.1USN-2217-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

6.33%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Exploit3

Vendor Advisory1

secunia.com

Other references10

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

Embed a live status badge for CVE-2014-3146

Markdown

[![CVE-2014-3146](https://tridentstack.com/cve/badge/CVE-2014-3146.svg)](https://tridentstack.com/cve/CVE-2014-3146)

HTML

<a href="https://tridentstack.com/cve/CVE-2014-3146"><img src="https://tridentstack.com/cve/badge/CVE-2014-3146.svg" alt="CVE-2014-3146"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.