Arbitrary file upload in Synaptikcms Synaptik-Cms
CVE-2026-92247
A security vulnerability has been detected in synaptikcms synaptik-cms up to 1.3.4.4. This affects the function rename of the file admin/file-manager.php of the component Admin File Manager. The manipulation leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.3.5 is able to mitigate this issue. It is suggested to upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (33.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Synaptikcms Synaptik-Cms — versions 1.3.4.0, 1.3.4.1, 1.3.4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/vuln/404682 (technical-description, vdb-entry)
- vuldb.com/vuln/404682/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-92247 (third-party-advisory)
- vuldb.com/submit/934183 (third-party-advisory)
- github.com/d1n3sh-0x3/synaptikcms-security-research (exploit)
- github.com/synaptikcms/synaptik-cms/releases/tag/v1.3.5 (patch)
Frequently asked questions
- What is CVE-2026-92247?
- CVE-2026-92247 is a medium-severity vulnerability in Synaptikcms Synaptik-Cms, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-09-16.
- How severe is CVE-2026-92247?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2026-92247 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.