CVE-2021-32670
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.
Does this matter?
Lower severity and a low EPSS score (0.96%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- datasette/datasette
- Source
- security-advisories@github.com
References
- https://datasette.io/plugins/datasette-auth-passwordsVendor Advisory
- https://github.com/simonw/datasette/issues/1360Issue Tracking, Patch, Third Party Advisory
- https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5gThird Party Advisory
- https://owasp.org/www-community/attacks/xss/#reflected-xss-attacksThird Party Advisory
- https://pypi.org/project/datasette/Release Notes, Third Party Advisory
- https://datasette.io/plugins/datasette-auth-passwordsVendor Advisory
- https://github.com/simonw/datasette/issues/1360Issue Tracking, Patch, Third Party Advisory
- https://github.com/simonw/datasette/security/advisories/GHSA-xw7c-jx9m-xh5gThird Party Advisory
- https://owasp.org/www-community/attacks/xss/#reflected-xss-attacksThird Party Advisory
- https://pypi.org/project/datasette/Release Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.