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CVE-2018-3777: Insufficient URI encoding in restforce before 3.0.0 allows attacker to inject arbitrary parameters into Sal...

Insufficient URI encoding in restforce before 3.0.0 allows attacker to inject arbitrary parameters into Salesforce API requests.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-3777 affects the restforce Ruby gem used to call Salesforce APIs. Before version 3.0.0, insufficient URI encoding could let an attacker add unintended parameters to Salesforce API requests. Business impact depends on whether exposed application inputs reach restforce request construction.

Executive priority

Treat this as a targeted dependency risk, not a broad emergency. Prioritize systems that integrate with Salesforce and accept external input. Remediation should be scheduled promptly where affected restforce versions are confirmed.

Technical view

The issue is improper input handling, mapped to CWE-20, in restforce request URI encoding. The CVE states attackers can inject arbitrary parameters into Salesforce API requests. The source bundle does not provide CVSS, detailed exploit preconditions, or confirmed impact scope beyond Salesforce API request parameter manipulation.

Likely exposure

Exposure is most likely in Ruby applications using restforce before 3.0.0, especially where user-controlled input influences Salesforce API request parameters. The provided affected metadata is inconsistent, so verify against the CVE description, PR, and local dependency locks.

Exploitation context

The bundle does not cite active exploitation, and KEV is false. Public evidence only supports the existence of a parameter-injection flaw. No exploit maturity, weaponized use, or observed campaign details are provided.

Researcher notes

The strongest source statement is parameter injection through insufficient URI encoding in restforce before 3.0.0. Evidence is thin: no CVSS, no exploit detail, and no KEV listing. The affected-version field in the bundle conflicts with the description and should be verified.

Mitigation direction

  • Inventory Ruby applications using the restforce gem.
  • Upgrade restforce to a non-affected version, using vendor guidance and PR #392 as reference.
  • Review Salesforce API call construction for user-controlled request parameters.
  • Add input validation around values passed into Salesforce API request helpers.
  • Monitor Salesforce API activity for unexpected query or request parameters.

Validation and detection

  • Check Gemfile.lock or dependency manifests for restforce versions before 3.0.0.
  • Confirm whether application inputs flow into restforce API request parameters.
  • Review the fix discussion in restforce pull request #392.
  • Run regression tests covering Salesforce API request encoding behavior.
  • Verify dependency scanners flag CVE-2018-3777 only on affected versions.
Prepared
Confidence
medium
Sources
3

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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-20: Exact CWE lookup

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cve · low confidence lookup

CVE-2018-3777 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
https://github.com/restforcerestforce ruby gem3.0.0Listed
Weakness

CWE details

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

CWE-20 · source CWE mapping

Improper Input Validation

Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.