EUVD-2026-63312
GHSA-6gfw-w2xm-f74r
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network-reachable deserialization sink (PR:N, AV:N, AC:L) with potential for code execution and data compromise gives high C/I/A, matching the reported vector.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated PHP Object Injection in FundEngine <= 1.7.9 versions.
Articles & Coverage 1
AnalysisAI
Unauthenticated PHP object injection in the Roxnor FundEngine (wp-fundraising-donation) WordPress plugin through version 1.7.9 lets remote attackers pass attacker-controlled serialized data into a PHP unserialize() sink without authentication. If a suitable POP gadget chain is present in the plugin, WordPress core, or another installed plugin, this can escalate to arbitrary code execution, file operations, or SQL manipulation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that untrusted input reach the plugin's deserialization sink, which per the CVSS vector (AV:N/AC:L/PR:N/UI:N) needs no authentication, no user interaction, and only network access to a site running FundEngine <= 1.7.9 - so any internet-facing WordPress install with the plugin active is reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting network-reachable, low-complexity, unauthenticated exploitation with high confidentiality, integrity, and availability impact - the maximal profile for a WordPress plugin flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker sends a crafted HTTP request to a FundEngine plugin endpoint with a serialized PHP object string embedded in a parameter the plugin later deserializes. When the plugin calls unserialize(), a gadget chain in the WordPress stack executes, allowing the attacker to read or write files, run code, or corrupt data. … |
| Remediation | No vendor-released patch version was identified in the provided data; the fix version is not stated in the Patchstack advisory reference supplied. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all WordPress installations to identify and inventory the Roxnor FundEngine plugin and assess whether any instances are internet-facing or process sensitive donor data. …
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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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