Security readout for executives and security teams
Plain-English summary
Crafter CMS 3.1 Studio has a high-severity flaw where a trusted developer account could run operating system commands through FreeMarker static methods. This is not described as unauthenticated internet compromise, but it can become serious if developer accounts are misused or compromised.
Executive priority
Treat this as a high-priority application security issue where Crafter CMS 3.1 supports business-critical content workflows. Urgency increases if Studio is externally reachable, developer accounts are broadly assigned, or privileged accounts lack strong controls.
Technical view
CVE-2021-23267 is CWE-913 in Crafter Studio for Crafter CMS 3.1. The CVSS 3.1 score is 7.6 with network attack vector, high complexity, high privileges, user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in organizations running Crafter CMS 3.1 with Crafter Studio enabled and authenticated developer users. The provided sources do not identify other affected versions or products.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The described issue requires an authenticated developer context and user interaction, making account governance and Studio access controls central to risk.
Researcher notes
The sources identify the vulnerability mechanism and affected product/version, but do not provide exploit details or a specific fix in the supplied bundle. Do not assume broader version impact, active exploitation, or remediation steps beyond vendor guidance.
Mitigation direction
- Review the Crafter security advisory for vendor-supported remediation guidance.
- Inventory Crafter CMS deployments and prioritize confirmed version 3.1 instances.
- Restrict Crafter Studio access to trusted networks and required developer accounts.
- Review developer role assignments and remove unnecessary elevated access.
- Monitor for unexpected template or FreeMarker-related changes.
Validation and detection
- Identify Crafter CMS Studio deployments and confirm whether version 3.1 is running.
- Confirm Crafter Studio is not exposed to untrusted networks unnecessarily.
- Review developer accounts for unused, shared, or overly broad access.
- Check recent template changes for unexpected FreeMarker static method usage.
- Confirm remediation status against the Crafter advisory.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CWE-913: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-23267 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
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.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H16Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.6HighVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2022051603CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Dynamically-Managed Code Resources
Improper Control of Dynamically-Managed Code Resources represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.