All the vulnerabilites related to lxml - lxml
cve-2018-19787
Vulnerability from cvelistv5
Published
2018-12-02 10:00
Modified
2024-08-05 11:44
Severity ?
EPSS score ?
Summary
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.
References
▼ | URL | Tags |
---|---|---|
https://usn.ubuntu.com/3841-1/ | vendor-advisory, x_refsource_UBUNTU | |
https://lists.debian.org/debian-lts-announce/2018/12/msg00001.html | mailing-list, x_refsource_MLIST | |
https://usn.ubuntu.com/3841-2/ | vendor-advisory, x_refsource_UBUNTU | |
https://github.com/lxml/lxml/commit/6be1d081b49c97cfd7b3fbd934a193b668629109 | x_refsource_MISC | |
https://lists.debian.org/debian-lts-announce/2020/11/msg00044.html | mailing-list, x_refsource_MLIST |
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cve-2020-27783
Vulnerability from cvelistv5
Published
2020-12-03 16:39
Modified
2024-08-04 16:25
Severity ?
EPSS score ?
Summary
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.
References
▼ | URL | Tags |
---|---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1901633 | x_refsource_MISC | |
https://www.debian.org/security/2020/dsa-4810 | vendor-advisory, x_refsource_DEBIAN | |
https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html | mailing-list, x_refsource_MLIST | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/ | vendor-advisory, x_refsource_FEDORA | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/ | vendor-advisory, x_refsource_FEDORA | |
https://www.oracle.com//security-alerts/cpujul2021.html | x_refsource_MISC | |
https://advisory.checkmarx.net/advisory/CX-2020-4286 | x_refsource_MISC | |
https://security.netapp.com/advisory/ntap-20210521-0003/ | x_refsource_CONFIRM |
Impacted products
▼ | Vendor | Product |
---|---|---|
n/a | python-lxml |
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cve-2021-43818
Vulnerability from cvelistv5
Published
2021-12-13 18:05
Modified
2024-08-04 04:03
Severity ?
EPSS score ?
Summary
HTML Cleaner allows crafted and SVG embedded scripts to pass through
References
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cve-2022-2309
Vulnerability from cvelistv5
Published
2022-07-05 09:00
Modified
2024-08-03 00:32
Severity ?
EPSS score ?
Summary
NULL Pointer Dereference in lxml/lxml
References
▼ | URL | Tags |
---|---|---|
https://huntr.dev/bounties/8264e74f-edda-4c40-9956-49de635105ba | x_refsource_CONFIRM | |
https://github.com/lxml/lxml/commit/86368e9cf70a0ad23cccd5ee32de847149af0c6f | x_refsource_MISC | |
https://security.gentoo.org/glsa/202208-06 | vendor-advisory, x_refsource_GENTOO | |
https://security.netapp.com/advisory/ntap-20220915-0006/ | x_refsource_CONFIRM | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/URHHSIBTPTALXMECRLAC2EVDNAFSR5NO/ | vendor-advisory, x_refsource_FEDORA | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HGYC6L7ENH5VEGN3YWFBYMGKX6WNS7HZ/ | vendor-advisory, x_refsource_FEDORA |
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This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn\u0027t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. 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If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-476 NULL Pointer Dereference" } ] } ] }, "references": { "reference_data": [ { "name": "https://huntr.dev/bounties/8264e74f-edda-4c40-9956-49de635105ba", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/8264e74f-edda-4c40-9956-49de635105ba" }, { "name": "https://github.com/lxml/lxml/commit/86368e9cf70a0ad23cccd5ee32de847149af0c6f", "refsource": "MISC", "url": "https://github.com/lxml/lxml/commit/86368e9cf70a0ad23cccd5ee32de847149af0c6f" }, { "name": "GLSA-202208-06", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202208-06" }, { "name": "https://security.netapp.com/advisory/ntap-20220915-0006/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20220915-0006/" }, { "name": "FEDORA-2022-ed0eeb6a20", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/URHHSIBTPTALXMECRLAC2EVDNAFSR5NO/" }, { "name": "FEDORA-2022-ed17f59c1d", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HGYC6L7ENH5VEGN3YWFBYMGKX6WNS7HZ/" } ] }, "source": { "advisory": "8264e74f-edda-4c40-9956-49de635105ba", "discovery": "EXTERNAL" } } } }, "cveMetadata": { "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2022-2309", "datePublished": "2022-07-05T09:00:12", "dateReserved": "2022-07-05T00:00:00", "dateUpdated": "2024-08-03T00:32:09.613Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2014-3146
Vulnerability from cvelistv5
Published
2014-05-14 19:00
Modified
2024-08-06 10:35
Severity ?
EPSS score ?
Summary
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.
References
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cve-2021-28957
Vulnerability from cvelistv5
Published
2021-03-21 04:39
Modified
2024-08-03 21:55
Severity ?
EPSS score ?
Summary
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.
References
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