CVE-2026-9858Partial Shipment for Woocommerce <= 3.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Settings Modification via wxp_order_shipment, wxp_order_item_shipment, and wxp_order_set_shipped AJAX Actions
- 4.3MediumCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 70% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Partial Shipment for Woocommerce plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.4 via the wxp_order_shipment, wxp_order_item_shipment, and wxp_order_set_shipped AJAX actions. This is due to the AJAX handlers in woocommerce-partial-shipment.php (registered at lines 60–62 and implemented at lines 228, 263, and 291) lacking both capability checks and nonce verification, and not validating the calling user's ownership of the supplied order_id. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read arbitrary order item details (names, quantities, shipped counts) belonging to any customer and to modify the shipment status / shipped quantities of any order, which can also trigger order status transitions via the wxp_order_status action.
Timeline
ID reserved
By Wordfence
- 4 months later
· 4 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.35% · top 70% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
wpexpertshub · Partial Shipment for WooCommerce
- affected ≤ 3.4
References
References6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d9278c56-b963-4d9b-ae5a-45dab44c701f?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wc-partial-shipment/tags/3.4/woocommerce-partial-shipment.php#L291 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wc-partial-shipment/tags/3.4/woocommerce-partial-shipment.php#L228 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wc-partial-shipment/tags/3.4/woocommerce-partial-shipment.php#L263 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wc-partial-shipment/tags/3.4/woocommerce-partial-shipment.php#L60 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3561104%40wc-partial-shipment&new=3561104%40wc-partial-shipment (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-83570 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-9858)Record last updated .