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| purl | pkg:deb/debian/lxml@4.3.2-1%2Bdeb10u4 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-6tqt-q9px-1ka6
Aliases: CVE-2021-43818 GHSA-55x5-fj6c-h6m8 PYSEC-2021-852 |
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available. |
Affected by 1 other vulnerability. |
|
VCID-fy7w-e8zj-hyas
Aliases: CVE-2021-28957 GHSA-jq4v-f5q6-mjqq PYSEC-2021-19 |
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3. |
Affected by 1 other vulnerability. |
|
VCID-kk16-5uu2-puc2
Aliases: CVE-2020-27783 GHSA-pgww-xf46-h92r PYSEC-2020-62 |
A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code. |
Affected by 1 other vulnerability. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-6tqt-q9px-1ka6 | lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available. |
CVE-2021-43818
GHSA-55x5-fj6c-h6m8 PYSEC-2021-852 |
| VCID-e3r9-eu7g-pfcq | regression update |
DSA-4810-2 lxml
|
| VCID-fy7w-e8zj-hyas | An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3. |
CVE-2021-28957
GHSA-jq4v-f5q6-mjqq PYSEC-2021-19 |
| VCID-kk16-5uu2-puc2 | A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code. |
CVE-2020-27783
GHSA-pgww-xf46-h92r PYSEC-2020-62 |
| VCID-m978-e1qe-syek | An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146. |
CVE-2018-19787
GHSA-xp26-p53h-6h2p PYSEC-2018-12 |