EUVD-2026-51948
GHSA-xh9j-gpmv-5c2v
Severity by source
AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Contributor access maps to PR:L not PR:H; AC:H retained because exploitation requires a co-installed POP-chain gadget, a non-default condition.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
5DescriptionCVE.org
The Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 does not prevent the deserialization of user-controlled input in some of its event content fields, allowing users with Contributor-level access and above to inject PHP objects. No POP chain is present in the Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 itself, but if one is present via another installed Event Booking Manager for WooCommerce WordPress plugin before 5.3.7 or , this could lead to actions such as arbitrary file deletion, sensitive data retrieval, or remote code execution. This is an incomplete fix of the Event Booking Manager for WooCommerce WordPress plugin before 5.3.7's earlier object-injection advisories.
AnalysisAI
PHP object injection in the Event Booking Manager for WooCommerce WordPress plugin (all versions before 5.3.7) allows authenticated contributors to deserialize attacker-controlled PHP objects through event content fields. Exploitation to achieve remote code execution, arbitrary file deletion, or sensitive data retrieval depends entirely on the presence of a usable POP (Property-Oriented Programming) chain from a co-installed plugin or theme - none exists within this plugin itself. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a WordPress site with the Event Booking Manager for WooCommerce plugin installed and running a version prior to 5.3.7; (2) an attacker authenticated with at minimum Contributor-level WordPress access - this is a low but non-zero privilege requirement, limiting anonymous exploitation; (3) a co-installed plugin, theme, or library that provides a usable PHP POP chain, as the vulnerable plugin itself contains no gadget chain. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD-assigned CVSS vector (AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H, score 6.6) contains a likely misclassification: PR:H implies administrator-level privilege, but the description explicitly states exploitation requires only Contributor-level access - a standard low-privilege WordPress role that any registered non-admin user may hold. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or compromises a Contributor-level account on a target WordPress site running the vulnerable plugin alongside a second plugin that provides a usable POP chain (such as one bundling Monolog or a Symfony component). The attacker submits a crafted event content field containing a serialized PHP object payload - the publicly available POC from WPScan provides the serialized structure - which the plugin deserializes server-side. … |
| Remediation | Update the Event Booking Manager for WooCommerce plugin to version 5.3.7 or later immediately, as this is the vendor-released patch per the WPScan advisory at https://wpscan.com/vulnerability/2e2bc528-0f06-4d99-8597-1f8a0fd57b39/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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