Security readout for executives and security teams
Plain-English summary
CVE-2020-24855 is a medium-severity directory traversal flaw in easywebpack-cli before 4.5.2. A crafted GET request could let an unauthenticated remote attacker read sensitive information. The public record does not show CISA KEV listing or confirmed active exploitation.
Executive priority
Prioritize remediation where the tool is reachable over a network or present in production-like build infrastructure. For internal-only development use, handle through normal patch management unless sensitive files may have been exposed.
Technical view
The issue is classified as CWE-22 and scored CVSS 3.1 5.3: network reachable, low complexity, no privileges or user interaction, unchanged scope, and low confidentiality impact only. The source bundle identifies easywebpack-cli before 4.5.2, but structured affected CPE/product data is incomplete.
Likely exposure
Exposure is most likely where easywebpack-cli versions before 4.5.2 are installed and any affected request-handling surface is reachable. Public affected-product metadata is sparse, so teams should confirm actual use from package manifests, lockfiles, and runtime deployment records.
Exploitation context
The CVE states attackers can obtain sensitive information using a crafted GET request. KEV is false in the supplied bundle, and no cited source confirms active exploitation. Treat exploit status as unconfirmed, not absent.
Researcher notes
The core weakness is path traversal with confidentiality impact. Public metadata lacks concrete CPEs and detailed affected configuration. Validate exposure through local dependency evidence and service reachability rather than assuming all environments using webpack-related tooling are affected.
Mitigation direction
- Upgrade easywebpack-cli to 4.5.2 or later where present.
- Remove external reachability for any affected development or build service.
- Review vendor issue guidance before applying compensating controls.
- Rotate exposed secrets if logs or investigation suggest file disclosure.
- Track the CVE record for corrected affected-product metadata.
Validation and detection
- Search package manifests and lockfiles for easywebpack-cli before 4.5.2.
- Confirm deployed environments are not running the vulnerable package version.
- Review access logs for suspicious GET requests around sensitive file paths.
- Verify the upgraded package version in build and runtime artifacts.
- Document whether the component is development-only or production-reachable.
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.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile 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-2020-24855 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/easy-team/easywebpack-cli/issues/25CVE reference
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.