Custom Fields for WooCommerce < 1.5.1 - Unauthenticated Arbitrary File Deletion via Path Traversal
Priority MEDIUM 50CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing unauthenticated users to delete arbitrary files on the server (such as wp-config.php), which can lead to a full site takeover.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00572 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Custom Fields (Unknown): 1.5.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Custom Fields | before 1.5.1 | 1.5.1 | Patch available | CNA |
- Custom Fields VendorUnknown Affected before 1.5.1 Fixed in 1.5.1 Patch available CNA
Remediation
- Fix · CNA Custom Fields (Unknown) Fixed in 1.5.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16940
- 2026-10-03 Alias added: GHSA-m93v-54x2-539c
References
Sources
- CVE-2026-16940 · CVE Program
- CVE-2026-16940 · NVD
- FIRST EPSS
- GHSA-m93v-54x2-539c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences