Vulnerability in Webreinvent Vaahcms
CVE-2026-67595
VaahCMS versions 2.0.0 through 2.3.4 contain a malicious obfuscated JavaScript payload embedded in the Blade template responsible for rendering security OTP emails, allowing remote attackers to execute unauthorized code in any browser that renders the affected email template with JavaScript enabled. The payload establishes a WebSocket connection to a hardcoded command-and-control endpoint, installs a password-field keylogger using MutationObserver to capture dynamically added inputs, scrapes WhatsApp Web DOM content, and accepts remote commands to redirect or overwrite the rendered page.
EPSS: 0.005 (43.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Webreinvent Vaahcms — versions 2.0.0, 8d7898f7a385a5fade1180a9b664ff158d873129
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Pull Request (issue-tracking)
- Patch Commit (patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-67595?
- CVE-2026-67595 is a high-severity vulnerability in Webreinvent Vaahcms, classified under CWE-506. CVSS score: 8.1/10. Published 2026-07-29.
- How severe is CVE-2026-67595?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2026-67595 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.