InPost for WooCommerce 1.7.5 - 1.9.7 - Unauthenticated Order Status Forgery via Shipment Webhook
Priority LOW 30CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
The InPost PL WordPress plugin before 1.9.8 does not verify the authenticity of incoming shipment webhook requests, relying only on a non-secret identifier and an IP check that is not enforced, allowing unauthenticated attackers who know a target order's parcel tracking number to forge its shipment status and prematurely mark the order completed.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00245 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed InPost PL (Unknown): 1.9.8
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 | InPost PL | 1.7.5 to before 1.9.8 | 1.9.8 | Patch available | CNA |
- InPost PL VendorUnknown Affected 1.7.5 to before 1.9.8 Fixed in 1.9.8 Patch available CNA
Remediation
- Fix · CNA InPost PL (Unknown) Fixed in 1.9.8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93580
- 2026-10-03 Alias added: GHSA-hx8f-2q78-rxw2
References
Sources
- CVE-2026-93580 · CVE Program
- CVE-2026-93580 · NVD
- FIRST EPSS
- GHSA-hx8f-2q78-rxw2 · 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