ALPINE-CVE-2021-28957
- Source
- https://security.alpinelinux.org/vuln/CVE-2021-28957
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-28957.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2021-28957
- Upstream
- Published
- 2021-03-21T05:15:13Z
- Modified
- 2025-09-30T05:21:08.163402Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safeattrsonly 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
Affected packages
Alpine:v3.16
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.17
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.18
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.19
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.20
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.21
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0
Alpine:v3.22
py3-lxml
Package
- Name
- py3-lxml
- Purl
- pkg:apk/alpine/py3-lxml?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.6.3-r0
Affected versions
2.*
2.2.6-r0
2.2.8-r0
2.2.8-r1
2.3.4-r1
2.3.5-r0
3.*
3.1.0-r0
3.2.3-r0
3.3.2-r0
3.4.0-r0
3.4.4-r0
3.5.0-r0
3.6.0-r0
3.6.0-r1
3.6.4-r0
3.7.1-r0
3.7.2-r0
3.7.2-r1
3.8.0-r0
4.*
4.0.0-r0
4.1.0-r0
4.1.0-r1
4.1.1-r0
4.2.0-r0
4.2.1-r0
4.2.2-r0
4.2.3-r0
4.2.4-r0
4.2.5-r0
4.3.2-r0
4.3.3-r0
4.3.3-r1
4.3.4-r0
4.4.0-r0
4.4.1-r0
4.4.1-r1
4.4.1-r2
4.4.1-r3
4.4.2-r0
4.4.3-r0
4.5.0-r0
4.5.1-r0
4.5.2-r0
4.6.0-r0
4.6.1-r0
4.6.2-r0