HOMEVULNERABILITIESCVE-2023-6188
CRITICAL

CVE-2023-6188

CWE-94Published: November 17, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability was found in GetSimpleCMS 3.3.16/3.4.0a. It has been rated as critical. This issue affects some unknown processing of the file /admin/theme-edit.php. The manipulation leads to code injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-245735.

NVD Source

Risk Analysis

GetSimpleCMS versions 3.3.16 and 3.4.0a are susceptible to remote code injection via the admin theme editor. This critical vulnerability allows an attacker to execute arbitrary code on the server, posing a severe risk to system integrity.

While the exploit has been publicly disclosed, it is not currently included in CISA's KEV catalog. The flaw is remotely exploitable.

Recommended Action

Administrators should upgrade to a patched version of GetSimpleCMS beyond 3.4.0a to prevent unauthorized code execution.

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-2023-6188 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

get-simple1 product(s)
getsimplecms
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

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

All References (8)

Quick Facts

CVE IDCVE-2023-6188
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedNov 17, 2023

Related CVEs (CWE-94)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-6188 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.