CVE-2014-3146 EXPLOIT
6.1
MEDIUM · CVSS 3.1 · EPSS 6.3% (pctl 93)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 6.1 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 6.33% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2014-05-14 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| lxml | lxml |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | lxml - 'clean_html' Security Bypass | 2014-04-15 |
References
- http://advisories.mageia.org/MGASA-2014-0218.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
- http://lxml.de/3.3/changes-3.3.5.html
- http://seclists.org/fulldisclosure/2014/Apr/210
- http://seclists.org/fulldisclosure/2014/Apr/319
- http://secunia.com/advisories/58013
- http://secunia.com/advisories/58744
- http://secunia.com/advisories/59008
- http://www.debian.org/security/2014/dsa-2941
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:112
- http://www.openwall.com/lists/oss-security/2014/05/09/7
- http://www.securityfocus.com/bid/67159
- http://www.ubuntu.com/usn/USN-2217-1
- https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html
- http://advisories.mageia.org/MGASA-2014-0218.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
- http://lxml.de/3.3/changes-3.3.5.html
- http://seclists.org/fulldisclosure/2014/Apr/210
- http://seclists.org/fulldisclosure/2014/Apr/319
- http://secunia.com/advisories/58013
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