Security readout for executives and security teams
Plain-English summary
This issue affects the Fancy Product Designer WordPress plugin through version 4.6.9. A logged-in user with only subscriber privileges could access or change plugin data and settings, including order or product-related information. The business risk is mainly unauthorized data access and unauthorized store changes on affected WordPress sites.
Executive priority
Treat this as a near-term remediation item for ecommerce or customer-facing WordPress sites. It is not reported as actively exploited, but it can affect order data and store integrity when low-privilege accounts exist.
Technical view
CVE-2021-4335 is an authorization failure in multiple AJAX functions in Fancy Product Designer <=4.6.9. Missing capability checks allow authenticated low-privilege users to perform actions normally reserved for higher roles. CVSS is 6.3, with low attack complexity, required privileges, and limited confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites using Fancy Product Designer versions up to and including 4.6.9, especially sites allowing subscriber accounts or public registration.
Exploitation context
The bundle does not show CISA KEV listing or other evidence of active exploitation. Abuse requires an authenticated user with subscriber-level access, so risk rises where customer accounts or self-registration are enabled.
Researcher notes
The key evidence is missing capability checks across multiple AJAX actions. The affected boundary is authenticated subscriber-level access, not unauthenticated internet access. The source bundle does not provide exploit telemetry, payload detail, or a specific fixed version.
Mitigation direction
- Inventory WordPress sites for Fancy Product Designer versions up to 4.6.9.
- Check vendor and Wordfence guidance for the confirmed fixed version or mitigation.
- Update to a vendor-supported fixed release when confirmed by official guidance.
- Restrict public registration or low-privilege account creation until remediated.
- Disable the plugin temporarily where business risk is unacceptable and no fix is confirmed.
Validation and detection
- Confirm each site’s installed Fancy Product Designer plugin version.
- Identify whether subscriber accounts or public user registration are enabled.
- Review WordPress logs for unexpected plugin settings, product, or order changes.
- Verify subscriber users cannot perform administrative plugin AJAX actions after remediation.
- Document fixed-version evidence from vendor or Wordfence sources.
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
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ATT&CK lookup starting points
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CWE-285: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-4335 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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:L/A:L2.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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.
CWE mapping pending import
This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.