CVE-2026-27696
8.6 · HIGHOverview
CVE-2026-27696 is a high-severity vulnerability affecting webtechnologies changedetection. It was published on February 25, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
changedetection.io is a free open source web page change detection tool. In versions prior to 0.54.1, changedetection.io is vulnerable to Server-Side Request Forgery (SSRF) because the URL validation function `is_safe_valid_url()` does not validate the resolved IP address of watch URLs against private, loopback, or link-local address ranges. An authenticated user (or any user when no password is configured, which is the default) can add a watch for internal network URLs. The application fetches these URLs server-side, stores the response content, and makes it viewable through the web UI — enabling full data exfiltration from internal services. Version 0.54.1 contains a fix for the issue.
Remediation
Check the references section for vendor advisories and patches from webtechnologies. Update changedetection to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| webtechnologies | changedetection | >= 0, < 0.54.1 | Affected |
Frequently Asked Questions
What is CVE-2026-27696?
CVE-2026-27696 is a high-severity vulnerability affecting webtechnologies changedetection. It was published on February 25, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2026-27696?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-27696?
Check the references section for vendor advisories and patches from webtechnologies. Update changedetection to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-27696?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-27696 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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