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CVE-2021-32670 Details

Description

Datasette is an open source multi-tool for exploring and publishing data. The `?_trace=1` debugging feature in Datasette does not correctly escape generated HTML, resulting in a [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks) vulnerability. This vulnerability is particularly relevant if your Datasette installation includes authenticated features using plugins such as [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords) as an attacker could use the vulnerability to access protected data. Datasette 0.57 and 0.56.1 both include patches for this issue. If you run Datasette behind a proxy you can workaround this issue by rejecting any incoming requests with `?_trace=` or `&_trace=` in their query string parameters.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://datasette.io/plugins/datasette-auth-passwords	CVE	Vendor Advisory
https://github.com/simonw/datasette/issues/1360	CVE	Issue TrackingPatchThird Party Advisory
https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5g	CVE	Third Party Advisory
https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks	CVE	Third Party Advisory
https://pypi.org/project/datasette/	CVE	Release NotesThird Party Advisory
https://datasette.io/plugins/datasette-auth-passwords	[email protected]	Vendor Advisory
https://github.com/simonw/datasette/issues/1360	[email protected]	Issue TrackingPatchThird Party Advisory
https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5g	[email protected]	Third Party Advisory
https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks	[email protected]	Third Party Advisory
https://pypi.org/project/datasette/	[email protected]	Release NotesThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
datasette datasette	< 0.56.1
CPE cpe:2.3:a:datasette:datasette:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jun 14, 2021	Initial Analysis	[email protected]