CVE-2026-8678 json
MyParcel <= 4.25.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Order Shipment Data Disclosure and Modification via wcmp_get_shipment_options and wcmp_save_shipment_options AJAX Actions
published 2026-07-11 3 mo ago modified 2026-07-13 3 mo ago also EUVD-2026-43119
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
The MyParcel plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.25.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to view and modify shipment options — including carrier, delivery type, package type, number of labels, weight, signature requirement, and insurance — on any arbitrary order.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- richardperdaan MyParcel
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/1a7bdae1-b28a-4fc6-9538-944ffeb32796?source=cve
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.25.1/includes/admin/class-wcmypa-admin.php#L872
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.25.1/includes/admin/class-wcmypa-admin.php#L653
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.25.1/includes/admin/class-wcmypa-admin.php#L118
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.24.3/includes/admin/class-wcmypa-admin.php#L872
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.24.3/includes/admin/class-wcmypa-admin.php#L653
- plugins.trac.wordpress.org /browser/woocommerce-myparcel/tags/4.24.3/includes/admin/class-wcmypa-admin.php#L118
- plugins.trac.wordpress.org /changeset?reponame=&old=3585914%40woocommerce-myparcel&new=3585914%40woocommerce-myparcel
Sources
- CVE List CVE-2026-8678
- NVD CVE-2026-8678
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.