🛡️ CVE-2026-21433
🟠 CVSS 7.7 — High ⚠️ Exploit Public CWE-918 NVD
7.7
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE CWE-918
Public Exploit ⚠️ Yes
Source NVD
Published 2026-01-02
Updated 2026-06-02
Modified 2026-01-16
Fix URL N/A

Affected Packages

Software From version Fixed in
emlog 2.5.19

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