CVE-2026-28348

Published: Mar 05, 2026 Last Modified: Mar 09, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,1
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters, allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0003
Percentile
0,1th
Updated

EPSS Score Trend (Last 11 Days)

116

Improper Encoding or Escaping of Output

Draft
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Modify Application Data Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Technologies: AI/ML, Database Server, Not Technology-Specific, Web Server
View CWE Details
Application

Lxml Html Clean by Fedoralovespython

Version Range Affected
To 0.4.4 (exclusive)
cpe:2.3:a:fedoralovespython:lxml_html_clean:*:*:*:*:*:python:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-hw26-…
https://github.com/fedora-python/lxml_html_clean/commit/2ef732667ddbc74ea59847b…
https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-hw26-…