CVE-2026-67595
CVE-2026-67595 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-506.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v4: 9.2
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-506
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2026-67595?
- CVE-2026-67595 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-67595 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-67595?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-67595 published?
- CVE-2026-67595 was published on 2026-07-29 and last updated on 2026-07-30.
References
- https://github.com/webreinvent/vaahcms/commit/8d7898f7a385a5fade1180a9b664ff158d873129
- https://github.com/webreinvent/vaahcms/pull/317
- https://www.vulncheck.com/advisories/vaahcms-malicious-javascript-supply-chain-via-security-otp-blade-php
Other CWE-506 vulnerabilities
- CVE-2026-46412 — Critical (CVSS 10.0): @beproduct/nestjs-auth is a NestJS authentication module for BeProduct IDS (Identity Server) with OpenID Connect…
- CVE-2026-28353 — Critical (CVSS 10.0): Trivy Vulnerability Scanner is a VS Code extension that helps find vulnerabilities. In Trivy VSCode Extension version…
- CVE-2024-3094 — Critical (CVSS 10.0): Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of…
- CVE-2026-77651 — Critical (CVSS 9.8): The arrayref crate 0.3.10 for Rust can trigger execution of malicious code when compiling a project that uses the…
- CVE-2026-77650 — Critical (CVSS 9.8): The append-only-vec crate 0.1.9 for Rust can trigger execution of malicious code when compiling a project that uses the…
- CVE-2026-77649 — Critical (CVSS 9.8): The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses the…