Security readout for executives and security teams
Plain-English summary
CVE-2018-3748 is a stored cross-site scripting issue in the glance Node module through version 3.0.5. A crafted filename can be rendered as HTML or JavaScript in a directory listing, causing code to run in another user’s browser when they view that listing.
Executive priority
Treat as a targeted web application risk, not an infrastructure-wide emergency. Prioritize systems where directory listings are public or where customers, partners, or lower-trust users can create files.
Technical view
The vulnerable behavior is unsafe rendering of filenames in glance-generated directory listings. If an attacker can create or influence a filename in a listed directory, stored script content may execute for users who browse that listing. The public record does not provide CVSS, CWE, or a named fixed version.
Likely exposure
Exposure is most likely in Node.js services using glance <= 3.0.5 to publish directory listings, especially where untrusted users can upload, sync, or otherwise create files.
Exploitation context
The CVE and HackerOne reference describe stored XSS via crafted filenames. The provided bundle does not show CISA KEV listing or other evidence of active exploitation in the wild.
Researcher notes
Evidence is narrow but clear: the issue depends on unsafe filename rendering and user viewing of a directory listing. The source bundle lacks CVSS, CWE, fixed-version details, and exploit-in-the-wild confirmation, so remediation should be guided by package and vendor status.
Mitigation direction
- Inventory applications for glance versions <= 3.0.5.
- Check npm, project, or vendor guidance for safe upgrade or patch status.
- Disable public directory listings where not required.
- HTML-escape filenames before rendering if application code controls listing output.
- Restrict untrusted file creation in directories exposed through listings.
Validation and detection
- Review package manifests and lockfiles for glance <= 3.0.5.
- Identify routes or services that expose glance directory listings.
- Confirm whether listed directories can contain untrusted filenames.
- Inspect rendering logic for proper HTML escaping of filenames.
- Verify compensating controls by reviewing configuration, not by using exploit payloads.
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-2018-3748 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://hackerone.com/reports/310133CVE 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.