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CVE Record

CVE-2020-7710: Sandbox Escape

This affects all versions of package safe-eval. It is possible for an attacker to run an arbitrary command on the host machine.

HighCVSS 8.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-7710 is a sandbox escape in the npm package safe-eval. If an application uses it to process attacker-controlled input, an attacker may bypass the sandbox and run commands on the host. That creates a credible risk of system compromise.

Executive priority

Prioritize review of internet-facing or customer-input systems first. The business risk is host command execution, but the available evidence does not confirm active exploitation. Removal or replacement is the clearest path when safe-eval handles untrusted input.

Technical view

safe-eval is reported vulnerable across all versions. The issue permits sandbox escape and arbitrary command execution on the host. CVSS 3.1 is 8.1 high: network attack vector, high complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is most likely in Node.js applications that include safe-eval and evaluate user-controlled expressions, rules, templates, configuration, or API-supplied code. Installed but unused packages present less direct exposure.

Exploitation context

The bundle does not show CISA KEV listing or confirmed active exploitation. CVSS exploit maturity is proof-of-concept, and public references describe the sandbox escape risk. Treat internet-facing use with untrusted input as urgent.

Researcher notes

Evidence is limited to the CVE record, CVE List data, Snyk advisory, and upstream GitHub issue. No CWE is provided in the bundle. No fixed version is identified here, so remediation should be validated against vendor or advisory guidance.

Mitigation direction

  • Inventory applications for the safe-eval npm package.
  • Remove or replace safe-eval where untrusted input can reach it.
  • Avoid evaluating user-controlled strings as code.
  • Check Snyk and upstream guidance for current remediation options.
  • Add dependency scanning to block reintroduction.

Validation and detection

  • Search dependency manifests and lockfiles for safe-eval.
  • Trace whether safe-eval receives user-controlled input.
  • Review exposed routes, workers, and jobs using evaluation logic.
  • Confirm dependency scanners flag CVE-2020-7710.
  • Document any compensating controls or removal evidence.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-7710 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C2.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.1High
CVSS 3.1 vector shape for CVE-2020-7710Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/asafe-eval0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.