---
cve: "CVE-2014-3146"
severity: "MEDIUM"
cvss: 6.1
epss: "6.3%"
vendor: "n/a"
kev: false
exploited: false
published: "2014-05-14 19:55:11"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-09T10:56:49+02:00"
---

# CVE-2014-3146

> 6.1 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Exploit-Evidenz

- [EDB-39155 — lxml - 'clean_html' Security Bypass](https://www.exploit-db.com/exploits/39155) ✅

## Referenzen

- <http://www.debian.org/security/2014/dsa-2941>
- <http://lxml.de/3.3/changes-3.3.5.html>
- <http://www.openwall.com/lists/oss-security/2014/05/09/7>
- <http://www.ubuntu.com/usn/USN-2217-1>
- <https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html>
- <http://secunia.com/advisories/58744>
- <http://advisories.mageia.org/MGASA-2014-0218.html>
- <http://www.securityfocus.com/bid/67159>
- <http://www.mandriva.com/security/advisories?name=MDVSA-2015:112>
- <http://secunia.com/advisories/58013>
- <http://seclists.org/fulldisclosure/2014/Apr/210>
- <http://secunia.com/advisories/59008>
- <http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html>
- <http://seclists.org/fulldisclosure/2014/Apr/319>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2014-3146) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_