HOMEVULNERABILITIESCVE-2023-0651
CRITICAL

CVE-2023-0651

CWE-434Published: February 2, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability was found in FastCMS 0.1.0. It has been classified as critical. Affected is an unknown function of the component Template Management. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

NVD Source

Risk Analysis

FastCMS 0.1.0 is vulnerable to unrestricted file uploads within its template management component. This critical flaw allows remote attackers to upload and execute arbitrary files on the server.

No public exploit is known, and it is not in CISA KEV. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Upgrade FastCMS to a version beyond 0.1.0 and restrict access to the template management functionality.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-0651 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

fastcms_project1 product(s)
fastcms
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (9)

Quick Facts

CVE IDCVE-2023-0651
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 2, 2023

Related CVEs (CWE-434)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-0651 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.