Unrated severityOSV Advisory· Published Jan 2, 2026· Updated Jan 5, 2026
Emlog vulnerable to Server-Side Request Forgery (SSRF)
CVE-2026-21433
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/emlog/emlog/security/advisories/GHSA-6rwr-c8hc-mjj4mitrex_refsource_CONFIRM
News mentions
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