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Security Advisories: GSA_kwCzR0hTQS1jZjRxLTRjcXItN2c3d80_oQ

SVG with embedded scripts can lead to cross-site scripting attacks in xml2rfc

xml2rfc allows script elements in SVG sources.
In HTML output having these script elements can lead to XSS attacks.

Sample XML snippet:

<artwork type="svg" src="data:image/svg+xml,%3Csvg viewBox='0 0 10 10' xmlns='http://www.w3.org/2000/svg'%3E%3Cscript%3E window.alert('Test Alert'); %3C/script%3E%3C/svg%3E">
</artwork>

Impact

This vulnerability impacts website that publish HTML drafts and RFCs.

Patches

This has been fixed in version 3.12.4.

Workarounds

If SVG source is self-contained within the XML, scraping script elements from SVG files.

References

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-cf4q-4cqr-7g7w
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jZjRxLTRjcXItN2c3d80_oQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 2 years ago
Updated: over 1 year ago


Identifiers: GHSA-cf4q-4cqr-7g7w
References: Repository: https://github.com/ietf-tools/xml2rfc
Blast Radius: 0.0

Affected Packages

pypi:xml2rfc
Dependent packages: 1
Dependent repositories: 34
Downloads: 3,716 last month
Affected Version Ranges: < 3.12.4
Fixed in: 3.12.4
All affected versions: 2.2.5, 2.2.7, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.3.8, 2.3.9, 2.3.10, 2.3.11, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.4.8, 2.4.9, 2.4.10, 2.4.11, 2.4.12, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5, 2.9.0, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5, 2.9.6, 2.9.7, 2.9.8, 2.9.9, 2.10.0, 2.10.1, 2.10.2, 2.10.3, 2.11.0, 2.11.1, 2.12.0, 2.12.1, 2.12.2, 2.12.3, 2.13.0, 2.13.1, 2.14.0, 2.14.1, 2.15.0, 2.15.1, 2.15.2, 2.15.3, 2.15.4, 2.15.5, 2.16.0, 2.16.1, 2.16.2, 2.16.3, 2.17.0, 2.17.1, 2.17.2, 2.18.0, 2.19.0, 2.19.1, 2.20.0, 2.20.1, 2.21.0, 2.21.1, 2.22.0, 2.22.1, 2.22.2, 2.22.3, 2.23.0, 2.23.1, 2.24.0, 2.25.0, 2.26.0, 2.27.0, 2.27.1, 2.28.0, 2.29.0, 2.29.1, 2.30.0, 2.31.0, 2.32.0, 2.33.0, 2.34.0, 2.35.0, 2.36.0, 2.37.0, 2.37.1, 2.37.2, 2.37.3, 2.38.0, 2.38.1, 2.39.0, 2.40.0, 2.40.1, 2.41.0, 2.42.0, 2.43.0, 2.44.0, 2.45.0, 2.45.1, 2.45.2, 2.45.3, 2.46.0, 2.47.0, 3.0.0, 3.1.0, 3.1.1, 3.2.0, 3.2.1, 3.3.0, 3.4.0, 3.5.0, 3.6.0, 3.7.0, 3.8.0, 3.9.0, 3.9.1, 3.10.0, 3.11.0, 3.11.1, 3.12.0, 3.12.1, 3.12.2, 3.12.3
All unaffected versions: 3.12.4, 3.12.5, 3.12.6, 3.12.7, 3.12.8, 3.12.9, 3.12.10, 3.13.0, 3.13.1, 3.14.0, 3.14.1, 3.14.2, 3.15.0, 3.15.1, 3.15.2, 3.15.3, 3.16.0, 3.17.0, 3.17.1, 3.17.2, 3.17.3, 3.17.4, 3.17.5, 3.18.0, 3.18.1, 3.18.2, 3.19.0, 3.19.1, 3.19.2, 3.19.3, 3.19.4, 3.20.0, 3.20.1, 3.21.0