Security readout for executives and security teams
Plain-English summary
Elefant CMS 2.0.3 had a file-upload protection flaw: it checked for executable files before fully decoding upload input, so a blocked file type could be misclassified. Exposure is most relevant where file manager uploads are enabled. Public sources do not provide CVSS, known exploitation, or a fixed release version.
Executive priority
Treat this as a targeted legacy-CMS exposure check, not a confirmed emergency. Prioritize organizations still running Elefant CMS 2.0.3 or public-facing upload workflows, then confirm remediation because the public record lacks severity scoring and exploitation evidence.
Technical view
The vulnerable code is apps/filemanager/handlers/upload/drop.php in Elefant CMS 2.0.3. The protection for “Cannot upload executable files” performed urldecode too late, creating a validation-order weakness around encoded upload values. The referenced upstream commit is the only remediation signal in the provided sources.
Likely exposure
Likely limited to Elefant CMS 2.0.3 deployments that use the file manager upload handler, especially admin or authenticated upload workflows reachable by untrusted users. The CVE source bundle does not identify CPEs, broader affected versions, or hosting prerequisites.
Exploitation context
The provided sources do not report active exploitation, KEV listing, exploit maturity, or public weaponization. The issue is conceptually serious because upload filtering bypasses can lead to unsafe files reaching a server, but impact depends on upload permissions and server execution behavior.
Researcher notes
Evidence is sparse. The core issue is validation order around URL decoding in the upload handler. Do not assume unauthenticated reachability, remote code execution, or affected versions beyond Elefant CMS 2.0.3 without additional vendor or code evidence.
Mitigation direction
- Inventory Elefant CMS deployments and confirm whether version 2.0.3 is present.
- Review the upstream commit and vendor guidance for the appropriate fix path.
- Upgrade to a fixed Elefant CMS release if the vendor identifies one.
- Restrict file manager upload access to trusted administrators only.
- Ensure upload directories cannot execute server-side code.
- Monitor upload directories for unexpected executable file types.
Validation and detection
- Confirm whether apps/filemanager/handlers/upload/drop.php exists in deployed code.
- Check whether upload validation decodes input before executable-file checks.
- Verify the referenced upstream commit is present or otherwise addressed.
- Review web server configuration for upload-directory execution restrictions.
- Look for suspicious executable files in historical upload locations.
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.
CVE-2018-15601 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/jbroadway/elefant/commit/afb3346e50b992bcba143660ca2149e563430e05CVE 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.