EUVD-2026-90225
GHSA-rrxc-cq5w-3qfq
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Network-reachable admin endpoint, no interaction; shop_manager role required so PR:H; PHP object injection can yield full CIA where a gadget chain exists, so C/I/A:H as worst case.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
3DescriptionCVE.org
Shop manager PHP Object Injection in Extra Product Options For WooCommerce | Custom Product Addons and Fields <= 3.3.8 versions.
AnalysisAI
PHP object injection in the ThemeHigh 'Extra Product Options For WooCommerce | Custom Product Addons and Fields' plugin through version 3.3.8 allows an authenticated user holding the WooCommerce shop_manager role or higher to pass a crafted serialized payload into a deserialization sink, enabling arbitrary PHP object instantiation that can escalate to code execution or data tampering if a usable gadget chain exists in the surrounding WordPress/WooCommerce stack. The issue is rated CVSS 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), reflecting high impact but a high-privilege, backend-only prerequisite rather than unauthenticated exposure. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated WordPress user holding the WooCommerce 'shop_manager' role (or higher) - the vulnerable deserialization path is reachable only from this privileged backend context, per the description and the PR:H metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but access-gated risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis, so the priority action is to check the ThemeHigh plugin page and the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/woo-extra-product-options/vulnerability/wordpress-extra-product-options-for-woocommerce-custom-product-addons-and-fields-plugin-3-3-8-php-object-injection-vulnerability?_s_id=cve) for a fixed release strictly newer than 3.3.8 and upgrade immediately when one is published; do not assume that simply being on 3.3.8 is safe, as that version is explicitly listed as affected. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress/WooCommerce instances running the ThemeHigh Extra Product Options plugin and confirm whether any remain at version 3.3.8 or earlier; immediately review and reduce the population of accounts holding the shop_manager role or higher, enforcing least privilege and removing stale or shared elevated accounts, and if the plugin is not business-critical, deactivate it on affected sites until a patched release ships. …
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External POC / Exploit Code
Leaving vuln.today