Security readout for executives and security teams
Plain-English summary
CVE-2020-7763 is an arbitrary file read issue in the npm package phantom-html-to-pdf before 0.6.1. If a vulnerable service exposes this PDF generation path, an unauthenticated network attacker could read sensitive local files. The main business risk is data exposure, not system takeover.
Executive priority
Prioritize remediation for any externally reachable PDF generation service because the likely impact is sensitive file disclosure. Internal-only use still needs cleanup, but urgency depends on who can submit rendering input.
Technical view
The source bundle identifies phantom-html-to-pdf versions before 0.6.1 as affected by arbitrary file read. CVSS 3.1 is 7.5 with network access, low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality impact only. The bundle cites a fixing commit but does not provide operational exploit details.
Likely exposure
Exposure is most likely in Node.js applications that include phantom-html-to-pdf below 0.6.1, especially PDF generation services reachable over a network. Confirm via dependency inventories, lockfiles, SBOMs, and deployed build artifacts.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. The CVSS vector indicates proof-of-concept maturity, but that is not evidence of real-world exploitation. Treat internet-facing or multi-tenant PDF rendering as higher urgency.
Researcher notes
Evidence is limited to package impact, version boundary, CVSS, Snyk reference, and fixing commit. No CWE, CPE, exploit procedure, or confirmed in-the-wild exploitation is provided in the bundle.
Mitigation direction
- Upgrade phantom-html-to-pdf to 0.6.1 or later where used.
- Check vendor advisory and fixing commit before relying on compensating controls.
- Restrict PDF generation endpoints to trusted callers where feasible.
- Avoid passing untrusted rendering input until patched.
Validation and detection
- Search package.json, lockfiles, SBOMs, and images for phantom-html-to-pdf.
- Confirm deployed versions are 0.6.1 or later.
- Identify routes or jobs that invoke HTML-to-PDF rendering.
- Review logs for unusual PDF rendering requests or file access errors.
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-2020-7763 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://snyk.io/vuln/SNYK-JS-PHANTOMHTMLTOPDF-1023598CVE reference · x_refsource_MISC
- https://github.com/pofider/phantom-html-to-pdf/commit/b5d2da2639a49a95e0bdb3bc0c987cb6406b8259CVE 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.