XSS in Lxml
CVE-2014-3146
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.063 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000
Affected products
- Lxml — versions 0.5, 0.5.1, 0.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2014/dsa-2941 (vendor-advisory)
- lxml.de/3.3/changes-3.3.5.html
- www.openwall.com/lists/oss-security/2014/05/09/7 (mailing-list)
- www.ubuntu.com/usn/USN-2217-1 (vendor-advisory)
- mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html (mailing-list, Exploit)
- secunia.com/advisories/58744 (third-party-advisory)
- advisories.mageia.org/MGASA-2014-0218.html
- www.securityfocus.com/bid/67159 (Exploit, vdb-entry)
- www.mandriva.com/security/advisories (vendor-advisory)
- secunia.com/advisories/58013 (Vendor Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2014-3146?
- CVE-2014-3146 is a medium-severity vulnerability in Lxml, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2014-05-14.
- How severe is CVE-2014-3146?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2014-3146 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.