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CVE-2026-81763 – Unauthenticated SQL Injection – Throws SPAM Away WordPress Plugin (≤ 3.8.2)

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Summary

CVE-2026-81763 is an unauthenticated SQL Injection vulnerability (CWE-89) affecting the Throws SPAM Away WordPress plugin in versions up to and including 3.8.2. The plugin fails to properly neutralize special SQL elements in attacker-supplied input, allowing blind SQL injection to be performed without any authentication. The flaw carries a Critical CVSS v3.1 base score of 9.3.

Technical details

  • Root cause: improper neutralization of SQL command elements (CWE-89) within the Throws SPAM Away plugin, enabling blind SQL injection (CAPEC-7).
  • Trigger conditions: an attacker sends crafted input to a vulnerable plugin endpoint on a WordPress site running the affected plugin version; no authentication or user interaction is required.
  • Attack vector: Network — remotely exploitable over HTTP with low attack complexity.
  • Impact: high confidentiality impact (unauthorized access to database contents) with a scope change; availability impact is low and there is no direct integrity impact.

Affected software

  • Throws SPAM Away WordPress plugin, versions up to and including 3.8.2.
  • Fixed in version 3.9 and later.

Severity

  • CVSS v3.1 Base Score: 9.3 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Mitigation and recommended actions

  • Immediate: Update the Throws SPAM Away WordPress plugin to version 3.9 or later.
  • If patching is not immediately possible: consider deactivating the plugin until it can be updated, and restrict or monitor traffic to the WordPress site (e.g., via a web application firewall) for SQL injection patterns targeting the plugin’s endpoints.

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/throws-spam-away/

References

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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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