EUVD-2026-53990
GHSA-mq39-r4w7-92mj
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network vector (PR:N/UI:N), but realistic impact needs a usable POP gadget chain, raising attack complexity to AC:H; full impact retained when a chain exists.
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 A.Williams <= 1.3.1 versions.
AnalysisAI
PHP Object Injection in the A.Williams (Alisha Williams) WordPress theme by AxiomThemes affects all versions up to and including 1.3.1, allowing remote unauthenticated attackers to inject crafted serialized PHP objects into an unsafe deserialization sink. When a suitable POP gadget chain is present in the theme or co-installed plugins, this can escalate to arbitrary file operations, SQL injection, or remote code execution. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Per the CVSS vector (PR:N/UI:N), exploitation is unauthenticated and requires no user interaction against the A.Williams theme ≤1.3.1. … 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, C:H/I:H/A:H = 9.8 Critical) portrays a trivially exploitable, unauthenticated network attack with full impact. … 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 endpoint of a WordPress site running the A.Williams theme ≤1.3.1, embedding a serialized PHP object in a parameter that reaches unserialize(). If a POP gadget chain exists in the theme, core, or an active plugin, the object triggers magic-method logic that leads to file writes, SQL injection, or code execution under the web server account. … |
| Remediation | No fixed version is stated in the available data, so no vendor-released patch is identified at time of analysis - the vulnerability covers all releases through 1.3.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all instances of the A.Williams theme deployed across your WordPress infrastructure and verify which versions are in use; simultaneously audit installed plugins for known POP gadget chains that could enable escalation to remote code execution. …
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External POC / Exploit Code
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