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CVE-2026-81294 – Unauthenticated Privilege Escalation – Authorizer WordPress Plugin ≤ 3.15.1

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Summary

CVE-2026-81294 is a critical unauthenticated privilege escalation vulnerability affecting the Authorizer plugin for WordPress, caused by incorrect privilege assignment (CWE-266). The flaw allows an unauthenticated attacker to escalate privileges on the affected site over the network, with no user interaction required. It carries a CVSS v3.1 base score of 9.8 (Critical) and impacts confidentiality, integrity, and availability.

Technical details

  • Root cause: incorrect privilege assignment logic within the Authorizer plugin (CWE-266), which fails to properly restrict elevated privileges.
  • Trigger conditions: no authentication or user interaction is required to exploit the flaw.
  • Attack vector: network-based (AV:N), reachable remotely against any exposed WordPress site running the vulnerable plugin.
  • Impact: an unauthenticated attacker can escalate their privileges, potentially gaining administrative-level access to the affected WordPress site, leading to full compromise of confidentiality, integrity, and availability.

Affected software

  • Authorizer (WordPress plugin) versions up to and including 3.15.1.

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: upgrade the Authorizer plugin to version 3.15.2 or later, where the privilege assignment issue is fixed.
  • If patching cannot be performed immediately, consider disabling or removing the Authorizer plugin until the update can be applied, and restrict access to WordPress admin/login endpoints as an interim network-level mitigation.

How IONIX identifies potentially affected assets

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

  • Raw response body: /wp-content/plugins/authorizer/

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.

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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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