CVE-2026-21433
Last modified
CVE-2026-21433 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Emlog | Emlog | <= 2.5.19 |
References
- https://github.com/emlog/emlog/security/advisories/GHSA-6rwr-c8hc-mjj4Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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