EUVD-2026-53991
GHSA-3wp2-2c4h-hf64
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network-reachable deserialization (AV:N/AC:L/PR:N/UI:N) with potential for full code execution justifies high C/I/A; scope unchanged as it executes within the app context.
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 Abelle <= 1.22 versions.
AnalysisAI
Insecure deserialization in the Abelle WordPress theme (ThemeREX) versions 1.22 and earlier lets unauthenticated remote attackers inject crafted PHP objects that the application deserializes, enabling PHP Object Injection. Because attacker-supplied serialized data reaches unsafe unserialize() logic without authentication, an adversary can potentially achieve remote code execution, data tampering, or full site compromise depending on available gadget chains in WordPress core, the theme, or co-installed plugins. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target WordPress site runs the Abelle theme at version 1.22 or earlier and that an attacker can reach the specific theme feature that accepts and deserializes untrusted input (network-reachable per AV:N, no authentication per PR:N, no user interaction per UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, score 9.8) describes a maximally severe, network-reachable, unauthenticated flaw requiring no user interaction - a strong prioritization signal. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker sends a crafted HTTP request to a public page or endpoint of a WordPress site running Abelle ≤1.22, embedding a serialized PHP object in a parameter the theme deserializes. If a suitable gadget chain exists in the site's loaded code, deserialization triggers magic methods that lead to file manipulation or remote code execution, all without authentication. … |
| Remediation | No vendor-released patch version is identified in the available data, and the EUVD record lists no fixed release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all WordPress instances running Abelle theme v1.22 or earlier and immediately deactivate the theme on affected sites. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
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External POC / Exploit Code
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