CVE-2025-69723

Published Oct 22, 2026 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
A reflected cross-site scripting (XSS) vulnerability in localstack v4.9.2 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title LocalStack Reflected XSS Enabling Client‑Side JavaScript Execution
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
Title LocalStack Reflected XSS Enabling Client‑Side JavaScript Execution
Weaknesses CWE-79
Type Values Removed Values Added
First Time appeared Localstack
Localstack localstack
Vendors & Products Localstack
Localstack localstack
Type Values Removed Values Added
Description A reflected cross-site scripting (XSS) vulnerability in localstack v4.9.2 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 26, 2026, 7:39 PM
Reserved
Jan 9, 2026, 12:00 AM
Status
Deferred
Published
Oct 22, 2026, 7:17 PM
Modified
Oct 28, 2026, 2:10 PM