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CVE-2026-65574 – Unauthenticated PHP Object Injection – Abogado WordPress Theme <= 1.18

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Summary

CVE-2026-65574 is an unauthenticated PHP Object Injection (deserialization of untrusted data) vulnerability in the AncoraThemes "Abogado" WordPress theme. It affects all versions up to and including 1.18 and carries a CVSS v3.1 base score of 9.8 (Critical). An unauthenticated, remote attacker can trigger deserialization of attacker-controlled data, potentially leading to full site compromise.

Technical details

  • Root cause: Deserialization of untrusted data (CWE-502). The theme deserializes attacker-controlled input, enabling PHP Object Injection.
  • Trigger conditions: No authentication and no user interaction are required to exploit the flaw.
  • Attack vector: Network — remotely exploitable over HTTP.
  • Impact: If a suitable POP (property-oriented programming) gadget chain is present in the WordPress installation, injection of a crafted object can result in high impact to confidentiality, integrity, and availability, up to complete site takeover.

Affected software

  • AncoraThemes Abogado WordPress Theme: all versions up to and including 1.18.

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: No fixed version is identified in the CVE record at time of publication. Monitor AncoraThemes for an updated release and apply it as soon as it becomes available.
  • If no patch: Restrict or disable the affected theme where feasible, keep WordPress core and all plugins/themes fully updated to reduce available gadget chains, and place a web application firewall in front of the site to filter malicious serialized payloads and anomalous requests.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw HTTP response body: /wp-content/themes/abogado/

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

Are you exposed?

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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