EUVD-2026-90215
GHSA-6p5w-gc4f-g298
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Network-reachable authenticated editor input with PR:H (high-privilege role required); deserialization enabling object injection yields high C/I/A, no scope change, no user interaction.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Editor PHP Object Injection in Page Builder by SiteOrigin <= 2.36.0 versions.
AnalysisAI
PHP object injection in Page Builder by SiteOrigin (siteorigin-panels) version 2.36.0 and earlier allows an authenticated WordPress user holding high privileges - an Administrator or the Editor-level role implied by the advisory - to supply crafted, serialized content through the page-builder editor that the plugin then deserializes, yielding high confidentiality, integrity and availability impact (CVSS 3.1 7.2, AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). Because the flaw is a CWE-502 deserialization issue, weaponization into full remote code execution depends on a usable PHP POP gadget chain being present in the plugin, WordPress core, or another installed component, so the practical worst case is conditional rather than guaranteed. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated, high-privilege WordPress user (PR:H - Administrator, or the Editor-level capability implied by the advisory title) with access to the SiteOrigin page-builder editor on a site running Page Builder by SiteOrigin (siteorigin-panels) version 2.36.0 or earlier. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H = 7.2 High) is the dominant signal, and it is internally consistent with the CWE-502 (PHP Object Injection / deserialization) classification: network-reachable, low attack complexity, no user interaction, but requiring high privileges (PR:H). … 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 patched version number is specified in the available intelligence, so the primary action is to update Page Builder by SiteOrigin (siteorigin-panels) to the most recent release above 2.36.0 as soon as the vendor-published fix appears, and to confirm the fixed version against the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/siteorigin-panels/vulnerability/wordpress-page-builder-by-siteorigin-plugin-2-36-0-php-object-injection-vulnerability) and the WordPress.org plugin repository rather than assuming 2.36.1 is the cutoff; patch status is therefore best described as "no vendor-released fix version confirmed in the provided data". … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress instances for Page Builder by SiteOrigin (siteorigin-panels) version 2.36.0 and earlier, identify every account with Administrator or Editor privileges, and either deactivate the plugin on internet-facing sites or temporarily remove page-builder edit capabilities from Editor-level roles. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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