Security readout for executives and security teams
Plain-English summary
Welcart e-Commerce for WordPress exposed a system-information download to any authenticated attacker because a permission check was missing. The disclosed data could include WordPress, plugin, PHP, and server settings. This is mainly a confidentiality issue, but leaked configuration can help follow-on attacks.
Executive priority
Treat this as a moderate-priority WordPress plugin exposure. Patch promptly, especially on ecommerce sites, because configuration disclosure can reduce the effort needed for later compromise even though this CVE is not described as directly destructive.
Technical view
CVE-2021-4375 is a CWE-862 missing authorization check in usces_download_system_information() in Welcart e-Commerce versions up to and including 2.2.7. The CVSS 3.1 score is 4.3: network reachable, low complexity, low privileges required, no user interaction, confidentiality impact only.
Likely exposure
Exposure is limited to WordPress sites running Welcart e-Commerce 2.2.7 or earlier where an attacker can authenticate to the site. Public anonymous exploitation is not described in the provided sources.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. Exploitation requires authenticated access and results in information disclosure, not direct code execution or data modification based on the cited description.
Researcher notes
The affected-version evidence is clear from the title and description, but the supplied bundle does not provide exploit telemetry, detailed request mechanics, or a vendor advisory URL. Keep validation focused on versioning, authenticated-user exposure, and signs of sensitive configuration access.
Mitigation direction
- Upgrade Welcart e-Commerce to version 2.2.8 or later.
- Check current vendor guidance for the maintained fixed version.
- Remove or disable untrusted WordPress user accounts.
- Limit dashboard access to trusted users only.
- Review exposed configuration data for secrets after remediation.
Validation and detection
- Inventory WordPress sites using the Welcart e-Commerce plugin.
- Confirm no site runs Welcart e-Commerce 2.2.7 or earlier.
- Review user accounts with any authenticated site access.
- Check logs for unusual system-information download activity.
- Verify remediation through plugin version evidence, not assumptions.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege 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 lookupCVE-2021-4375 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.