Security readout for executives and security teams
Plain-English summary
reecerver is a Node.js web server module with a directory traversal flaw. A remote requester may access files outside the intended web directory by manipulating URL paths. The bundle reports all versions affected, no CVSS score, and no named patched release.
Executive priority
Prioritize if any exposed service uses reecerver. Directory traversal can expose sensitive files, credentials, or application internals, but urgency depends on actual deployment because the affected module appears specific and no active exploitation is cited.
Technical view
CVE-2017-16188 is classified as CWE-22. The affected product is the reecerver node module, listed as all versions. The described issue is improper handling of parent-directory path segments in URLs, allowing filesystem access beyond the server root.
Likely exposure
Exposure is likely limited to systems that directly install and run the reecerver node module, especially if reachable over a network. The bundle does not identify downstream products or package transitive usage.
Exploitation context
The bundle includes a public proof-of-concept reference, but KEV is false and no cited source states active exploitation. Treat this as publicly documented and plausible, not confirmed exploited in the wild.
Researcher notes
Evidence is sparse: no CVSS vector, no fixed version, and only broad affected-version wording. Avoid assuming exploit prevalence. Focus on dependency discovery, runtime exposure, and whether the module serves files from sensitive hosts.
Mitigation direction
- Inventory applications and containers for the reecerver node module.
- Remove reecerver from production services where feasible.
- Replace it with a maintained web server package or framework.
- Restrict network access to any service still using reecerver.
- Check vendor and package advisories before selecting any replacement path.
Validation and detection
- Review manifests, lockfiles, and SBOMs for reecerver.
- Map any service that imports or starts the module.
- Confirm whether those services are internet-facing or internally reachable.
- Review static file serving behavior for filesystem exposure risk.
- Verify remediation by confirming reecerver is absent or isolated.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile 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-2017-16188 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://nodesecurity.io/advisories/443CVE reference · x_refsource_MISC
- https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/reecerverCVE 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.
