CVE-2026-21433
7.7 · HIGHOverview
CVE-2026-21433 is a high-severity vulnerability affecting emlog emlog. It was published on January 2, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Emlog is an open source website building system. Versions up to and including 2.5.19 are vulnerable to server-side Out-of-Band (OOB) requests / SSRF via uploaded SVG files. An attacker can upload a crafted SVG to http[:]//emblog/admin/media[.]php which contains external resource references. When the server processes/renders the SVG (thumbnailing, preview, or sanitization), it issues an HTTP request to the attacker-controlled host. Impact: server-side SSRF/OOB leading to internal network probing and potential metadata/credential exposure. As of time of publication, no known patched versions are available.
Remediation
Check the references section for vendor advisories and patches from emlog. Update emlog 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 |
|---|---|---|---|
| emlog | emlog | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-21433?
CVE-2026-21433 is a high-severity vulnerability affecting emlog emlog. It was published on January 2, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).
How severe is CVE-2026-21433?
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-21433?
Check the references section for vendor advisories and patches from emlog. Update emlog 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-2026-21433?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-21433 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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