Security readout for executives and security teams
Plain-English summary
This CVE affects older Elixir Plug releases. A null byte handling issue in Plug.Static may let a requester bypass filetype restrictions. The public record does not provide CVSS scoring or evidence of exploitation, so urgency depends on whether your application serves static files through affected Plug versions.
Executive priority
Prioritize remediation for internet-facing Elixir applications that rely on Plug.Static restrictions. Where Plug.Static is unused or already upgraded, urgency is lower. Lack of CVSS and exploit evidence limits confidence in broad business impact.
Technical view
Plug.Static before v1.0.4, v1.1.7, v1.2.3, and v1.3.2 is reported vulnerable to null byte injection. The stated impact is bypass of filetype restrictions. The source bundle does not identify affected downstream applications, detailed preconditions, CVSS metrics, or exploit activity.
Likely exposure
Exposure is most likely in Elixir/Phoenix systems using Plug.Static from the affected Plug release lines, especially where filetype restrictions protect static file serving. The provided CVE data lists no CPEs or specific affected products beyond Plug.
Exploitation context
The source bundle does not cite known active exploitation, and the CVE is not marked in KEV. Public evidence only supports a potential restriction-bypass condition in affected Plug.Static versions.
Researcher notes
The available sources establish affected version boundaries and the high-level null byte injection impact, but not root-cause detail, exploitability constraints, or affected configurations. Avoid assuming arbitrary file read or code execution without additional vendor evidence.
Mitigation direction
- Inventory Elixir applications using Plug.Static.
- Upgrade Plug to v1.0.4, v1.1.7, v1.2.3, v1.3.2, or later as appropriate.
- Review vendor or project advisories before deployment.
- Retest static file restrictions after upgrading.
Validation and detection
- Check dependency lockfiles for Plug versions below the fixed releases.
- Identify routes or middleware using Plug.Static.
- Confirm filetype restrictions behave as expected in staging.
- Review logs for unusual static file requests if logging is available.
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-2017-1000052 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://elixirforum.com/t/security-releases-for-plug/3913CVE reference · x_refsource_CONFIRM
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.