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Findings

Vulnerability · CVE-2021-23263

craftercms crafter_cms Transmission of Private Resources into a New Sphere ('Resource Leak')

Published Feb 27, 2025 · corrected/updated Feb 27, 2025 · craftercms crafter_cms · evidence confidence very high

Unauthenticated remote attackers can read textual content via FreeMarker including files /scripts/*, /templates/* and some of the files in /.git/* (non-binary).

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2021-23263 is a unknown public vulnerability record for craftercms crafter_cms. CISA lists it as known exploited. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether craftercms crafter_cms is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: craftercms crafter_cms. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: no CVSS/EPSS yet. CISA lists it as known exploited. Sources contributing to this record: vulncheck_kev. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since Feb 27, 2025. Listed in CISA KEV and VulnCheck KEV.

  • Patch and remediation

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 27, 2025 · VulnCheck KEV

    Detected

    Unauthenticated remote attackers can read textual content via FreeMarker including files /scripts/*, /templates/* and some of the files in /.git/* (non-binary).

  2. Feb 27, 2025 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected

  • vendor craftercms crafter_cmsversion unspecified

Sources

  • VulnCheck KEVConfirmed exploitationCVE-2021-23263

    Unauthenticated remote attackers can read textual content via FreeMarker including files /scripts/*, /templates/* and some of the files in /.git/* (non-binary).

    vulncheck.com

References