Security readout for executives and security teams
Plain-English summary
BlackCat CMS 1.2.2 has a file handling flaw that may let a media rename operation turn an uploaded file into a server-executable type. If reachable by an attacker with the needed access, this could threaten the website server. The sources do not provide CVSS, patch status, or confirmed exploitation.
Executive priority
Treat as high priority if BlackCat CMS 1.2.2 is present, because unsafe file extension handling can create severe server risk. If the CMS is not used, no direct exposure is indicated by the provided sources.
Technical view
The CVE describes unrestricted file upload behavior in backend\media\ajax_rename.php through the extension parameter, demonstrated by changing a media file extension to .php. The bundle names BlackCat CMS 1.2.2 only. Authentication requirements, default exposure, exact impact, and fixed versions are not provided in the sources.
Likely exposure
Likely exposure is limited to deployments running BlackCat CMS 1.2.2 with accessible backend media functionality. The provided data does not identify affected CPEs, other versions, or whether exploitation requires administrator or authenticated CMS access.
Exploitation context
The bundle marks KEV as false, so there is no provided evidence of CISA-tracked active exploitation. A public GitHub reference is cited, but the sources do not establish real-world exploitation, exploit maturity, authentication prerequisites, or patch availability.
Researcher notes
Evidence is sparse: the CVE record provides the affected version and vulnerable backend file, but no CVSS, CWE, patch, CPE, or exploitation status. Validate assumptions in a controlled environment and avoid inferring affected versions beyond 1.2.2.
Mitigation direction
- Inventory any BlackCat CMS 1.2.2 deployments and exposed backend media paths.
- Check BlackCat CMS or project guidance for fixed versions or official mitigations.
- Restrict backend media administration to trusted users and trusted networks.
- Disable server-side execution in media upload directories where platform controls allow it.
- Review web server rules for unsafe executable extensions in upload locations.
Validation and detection
- Confirm whether any public or internal site runs BlackCat CMS 1.2.2.
- Review backend media rename handling for extension allowlisting and executable type blocking.
- Check web server configuration for script execution inside media directories.
- Inspect application logs for unusual media rename activity or unexpected executable extensions.
- Document whether vendor guidance, compensating controls, or retirement is the chosen path.
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.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-14399 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/SPuerBRead/blackcat-cms-file-upload/blob/master/README.mdCVE 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.