EUVD-2026-60818
GHSA-wrmm-h8g9-2g7g
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-accessible WordPress editor exploitable by any authenticated low-privilege user; full C/I/A impact achievable via deserialization POP chain with no scope change.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Editor PHP Object Injection in TaxoPress <= 3.51.0 versions.
AnalysisAI
PHP Object Injection in TaxoPress versions up to and including 3.51.0 enables authenticated low-privileged WordPress users to inject malicious serialized PHP objects through the plugin's editor interface. When a suitable Property-Oriented Programming (POP) gadget chain is present in the target WordPress environment, this can escalate to full remote code execution, unauthorized file writes, or complete site compromise. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an active, authenticated WordPress session with at minimum a low-privilege role such as contributor, author, or editor - confirmed by PR:L in the CVSS vector, meaning unauthenticated remote exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 High vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) describes a network-reachable vulnerability exploitable with only low-privilege authentication and no user interaction, with full Confidentiality, Integrity, and Availability impact in the vulnerable system scope. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or compromises a low-privileged WordPress account - such as a contributor or editor - on a site running TaxoPress 3.51.0 or earlier. Through the editor interface, the attacker submits a specially crafted serialized PHP object payload; the plugin deserializes it server-side without sanitization, invoking magic methods on attacker-chosen classes. … |
| Remediation | Update TaxoPress to the version released after 3.51.0 by consulting the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/simple-tags/vulnerability/wordpress-taxopress-plugin-3-51-0-php-object-injection-vulnerability) or the WordPress plugin repository changelog, as the exact patched release version is not independently confirmed in the available reference data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: audit all WordPress installations to identify TaxoPress usage and confirm running versions; immediately disable and remove TaxoPress plugin version 3.51.0 or earlier from production environments. …
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External POC / Exploit Code
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