Security readout for executives and security teams
Plain-English summary
This flaw lets an unauthenticated internet user read files the WordPress File Upload plugin should not expose. The main business risk is disclosure of sensitive server files, configuration secrets, or private site data from affected WordPress sites.
Executive priority
Treat this as a near-term remediation item for internet-facing WordPress sites. It is not marked as actively exploited in the supplied evidence, but unauthenticated file read can expose credentials and accelerate broader compromise.
Technical view
CVE-2024-9939 is a CWE-22 path traversal issue in wfu_file_downloader.php affecting WordPress File Upload through 4.24.13. The CVSS 7.5 score reflects network access, low complexity, no authentication, and high confidentiality impact only.
Likely exposure
Exposure is most likely on public WordPress sites running WordPress File Upload versions up to and including 4.24.13. The provided affected-product metadata is inconsistent, so confirm plugin slug and version locally.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Public references include a vulnerability write-up and a WordPress plugin changeset, which may increase attacker awareness.
Researcher notes
The strongest evidence is the CVE description, Wordfence entry, and WordPress plugin changeset. Avoid assuming RCE from this CVE alone; the supplied title and description support arbitrary file read via path traversal, not code execution.
Mitigation direction
- Inventory WordPress sites for the WordPress File Upload plugin and exact installed version.
- Check vendor or WordPress plugin guidance for the fixed release and update promptly.
- Disable or remove the plugin where an update is unavailable or unnecessary.
- Limit public access to file download functionality where operationally feasible.
- Review WAF and access logs for suspicious unauthenticated downloader requests.
Validation and detection
- Confirm whether wp-file-upload is installed on every managed WordPress instance.
- Verify installed versions are not 4.24.13 or older.
- Review server logs for unexpected requests to wfu_file_downloader.php.
- Check whether sensitive files were exposed before remediation.
- Document findings and affected sites for follow-up monitoring.
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-2024-9939 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.
SSVC decision data
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:H/I:N/A:N3.93.6WordfenceVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineWordfence
Vendor Notified
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineWordfence
Disclosed
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5e51f301-026d-4ed7-82f8-96c1623bf95c?source=cveCVE reference, Wordfence
- https://plugins.trac.wordpress.org/changeset/3188857/wp-file-uploadCVE reference, Wordfence
- https://abrahack.com/posts/wp-file-upload-rce-part1/CVE reference, Wordfence
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.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.