WP Cost Estimation: Filesystem traversal
WP Cost Estimation is affected by filesystem traversal. Exposure depends on how the affected operation is made reachable by the site. A crafted path can escape the intended directory and reach files or directories elsewhere on the server.
- Component
- WP Cost Estimation
- Plugin slug
wp-cost-estimation- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 08, 2026
This CVE was published Jan 08, 2026 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update WP Cost Estimation to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The WP Cost Estimation plugin for WordPress is vulnerable to Upload Directory Traversal in versions before 9.660 via the uploadFormFiles function. This allows attackers to overwrite any file with a whitelisted type on an affected site.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L