CVE-2025-67634: CISA Software Acquisition Guide Tool · Cross-site Scripting
Affects CISA Software Acquisition Guide ToolSource CVE Database V5
Not known to be exploited · CVSS 4.6 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CISA Software Acquisition Guide Tool | Affected
| Fixed in– |
AI-suggested
European organizations should implement the following specific mitigations: 1) Immediately update the CISA Software Acquisition Guide Tool to the fixed version released after 2025-12-11 once available. 2) Until patches are applied, restrict access to the tool to trusted users only and enforce strict user training to avoid importing untrusted JSON files. 3) Implement Content Security Policy (CSP) headers to limit the execution of inline scripts and reduce the impact of XSS attacks. 4) Employ input validation and sanitization on all JSON imports, ensuring that scripts or executable code cannot be embedded. 5) Monitor user activity logs for unusual import actions or repeated failed attempts to import files. 6) Use browser security features such as XSS filters and disable unnecessary scripting capabilities where feasible. 7) Conduct phishing awareness campaigns to reduce the risk of social engineering attacks that could trick users into importing malicious files. 8) Consider network segmentation to isolate the tool from broader enterprise systems to limit lateral movement in case of compromise.
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').