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CVE Record

CVE-2021-46367: RiteCMS version 3.1.0 and below suffers from a remote code execution vulnerability in the admin panel.

RiteCMS version 3.1.0 and below suffers from a remote code execution vulnerability in the admin panel. An authenticated attacker can upload a PHP file and bypass the .htacess configuration to deny execution of .php files in media and files directory by default.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-46367 affects RiteCMS 3.1.0 and earlier. A logged-in attacker with admin panel access may upload a PHP file and bypass the intended upload-directory execution block, turning a content-management function into server-side code execution.

Executive priority

Treat this as high priority for any RiteCMS deployment because authenticated access can become server code execution. If RiteCMS is not used, document non-exposure and close the item.

Technical view

The CVE describes authenticated remote code execution in the RiteCMS admin panel. The weakness involves PHP file upload plus bypass of the default .htaccess rule intended to prevent PHP execution in media and files directories. Public exploit writeups exist, but the source bundle does not provide CVSS, CWE, patch status, or active exploitation evidence.

Likely exposure

Exposure is likely limited to organizations running RiteCMS 3.1.0 or earlier with reachable admin functionality. Risk increases where admin credentials are weak, shared, reused, or compromised.

Exploitation context

The issue is not listed in CISA KEV in the supplied bundle. Exploit-DB, Packet Storm, and a public gist are referenced, so public proof-of-concept information exists, but active exploitation is not evidenced here.

Researcher notes

Key missing evidence includes CVSS score, CWE mapping, affected CPEs, vendor patch details, and confirmed exploitation. The vulnerability hinges on authenticated admin upload behavior and ineffective upload-directory execution prevention.

Mitigation direction

  • Inventory RiteCMS deployments and identify versions 3.1.0 or earlier.
  • Check RiteCMS vendor guidance for fixed releases or configuration changes.
  • Restrict admin panel access to trusted networks and authorized users.
  • Remove unnecessary admin accounts and rotate credentials where exposure is suspected.
  • Ensure uploads cannot execute server-side PHP in media or files directories.
  • Review uploaded files and remove unauthorized server-side scripts.

Validation and detection

  • Confirm whether any production system runs RiteCMS 3.1.0 or earlier.
  • Verify admin panel exposure from internal and external network paths.
  • Review admin account lists for stale, shared, or unexpected users.
  • Inspect upload directories for unexpected PHP or executable files.
  • Review web and admin logs for suspicious authenticated upload activity.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-46367 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.