Security readout for executives and security teams
Plain-English summary
This affects WordPress sites using Easy Digital Downloads through version 3.3.3. An already-authenticated administrator could trigger unsafe PHP object deserialization through an upload parameter, potentially leading to serious site compromise if supporting gadget code is present.
Executive priority
Prioritize remediation for revenue-generating or externally exposed WordPress stores, especially where many administrators exist. The flaw requires admin access, but a compromised admin account could turn this into broad site impact.
Technical view
The issue is CWE-502 deserialization of untrusted input in the plugin's upload[file] handling. A privileged administrator can reference files through a PHAR wrapper, causing PHP object deserialization. Impact depends on an available POP chain, but CVSS rates confidentiality, integrity, and availability impact as high.
Likely exposure
Exposure is limited to WordPress installations running Easy Digital Downloads versions up to and including 3.3.3. The attacker must have administrator-level access, so the main risk is malicious admins, compromised admin accounts, or chained attacks after privilege escalation.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and the sources do not state active exploitation. The high severity reflects potential full-site impact after admin authentication, not anonymous remote exploitation.
Researcher notes
Focus review on the import upload path and filesystem handling changed in the referenced 3.3.4 WordPress Trac changesets. Do not assume exploitability without confirming an administrator foothold and a viable PHP object chain in the target environment.
Mitigation direction
- Upgrade Easy Digital Downloads to 3.3.4 or later where applicable.
- Review vendor and Wordfence guidance for any additional remediation notes.
- Enforce MFA and least privilege for WordPress administrator accounts.
- Audit administrator accounts and remove stale or unnecessary privileged users.
- Monitor admin upload and import activity for suspicious file-wrapper references.
Validation and detection
- Inventory WordPress sites using Easy Digital Downloads.
- Confirm no production site runs version 3.3.3 or earlier.
- Review recent administrator account activity around imports and uploads.
- Check web and PHP logs for unusual admin-side file handling errors.
- Verify admin MFA and account ownership for affected sites.
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-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process 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 lookupCVE-2022-2439 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
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/644c8702-08ad-4048-ae91-041f1771f1dc?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset/3154854/easy-digital-downloads/tags/3.3.4/includes/admin/import/import-functions.phpCVE reference
- https://plugins.trac.wordpress.org/changeset/3154854/easy-digital-downloads/tags/3.3.4/src/Utils/FileSystem.phpCVE 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.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.