Request a Quote for WooCommerce <= 2.9.2 - Unauthenticated Arbitrary File Upload via AJAX Popup Handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
The Request a Quote for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.9.2 via the `afrfq_submit_quote_via_popup()` function. This is due to missing file extension and MIME type validation in the popup upload handler, which uses the raw attacker-supplied filename directly as the destination for `move_uploaded_file()`. This makes it possible for unauthenticated attackers to upload executable files, such as PHP files, to a web-accessible temporary RFQ upload directory when a public quote rule with the multi-page popup flow is enabled.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18143
- 2026-10-03 Alias added: GHSA-f78j-xwc8-gq3q
- 2026-10-16 EPSS moved to the 50th–90th percentile
References
More Addify vulnerabilities
- TI-2022-03257 Role Based Pricing for WooCommerce < 1.6.2 - Subscriber+ Arbitrary File Upload CVSS 3.1HIGH 8.8
- TI-2022-03256 Role Based Pricing for WooCommerce < 1.6.3 - Subscriber+ PHAR Deserialization CVSS 3.1HIGH 8.8
- TI-2022-04480 Multiple Plugins from Addify - Multiple CSRF CVSS 3.1MEDIUM 6.5
- TI-2022-03157 Automatic User Roles Switcher < 1.1.2 - Subscriber+ Privilege Escalation CVSS 3.1MEDIUM 6.5
- TI-2022-03188 Product Stock Manager < 1.0.5 - Subscriber+ Unauthorised AJAX Calls CVSS 3.1MEDIUM 4.3
- TI-2023-23617 SQL injection vulnerability in addify Addifyfreegifts v.1.0.2 and before allows a remote… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-18143 · CVE Program
- CVE-2026-18143 · NVD
- FIRST EPSS
- GHSA-f78j-xwc8-gq3q · GitHub Advisory Database · CC BY 4.0
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