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CVE-2026-73390 – Unauthenticated Privilege Escalation – Total Donations WordPress Plugin (<= 2.0.5)

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Summary

CVE-2026-73390 is a critical unauthenticated privilege escalation vulnerability affecting the Total Donations WordPress plugin developed by KlbTheme, in versions up to and including 2.0.5. The flaw is classified as CWE-266 (Incorrect Privilege Assignment) and allows a remote, unauthenticated attacker to escalate privileges on an affected WordPress site. It carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: Incorrect privilege assignment (CWE-266) within the Total Donations plugin allows privilege levels to be assigned or elevated without proper authorization checks.
  • Trigger conditions: No authentication or user interaction is required to exploit the vulnerability.
  • Attack vector: Network — the vulnerability can be exploited remotely over HTTP(S) against any internet-exposed WordPress site running the affected plugin.
  • Impact: Successful exploitation results in high confidentiality, integrity, and availability impact, consistent with an attacker gaining elevated (potentially administrative) privileges on the WordPress site.

Affected software

  • Total Donations (WordPress plugin) by KlbTheme — all versions up to and including 2.0.5

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: Check with the plugin vendor (KlbTheme) for an updated version of Total Donations beyond 2.0.5 and apply it as soon as it is available.
  • If no patch is available: Deactivate and remove the Total Donations plugin from affected WordPress installations until a fix is confirmed, and restrict or monitor access to WordPress admin-ajax and plugin-related endpoints as a compensating network-level control.

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 response body: /wp-content/plugins/total-donations/

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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  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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