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PatchSiren cyber security CVE debrief

CVE-2021-47984 WP24 CVE debrief

CVE-2021-47984 is a stored cross-site scripting (XSS) vulnerability in WordPress Plugin WP24 Domain Check version 1.6.2. The vulnerability allows authenticated attackers to inject malicious scripts by submitting crafted input to the fieldnameDomain parameter. Attackers can inject JavaScript payloads through the plugin settings form at options.php that execute in the browsers of administrators viewing the settings page. The CVSS score for this vulnerability is 5.1, indicating a medium severity.

Vendor
WP24
Product
WP24 Domain Check
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-08
Original CVE updated
2026-07-23
Advisory published
2026-06-08
Advisory updated
2026-07-23

Who should care

Administrators and users of WordPress Plugin WP24 Domain Check version 1.6.2 should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability exists in the WP24 Domain Check plugin, specifically in version 1.6.2. It allows authenticated attackers to inject malicious scripts, which can then be executed in the browsers of administrators who view the settings page.

Defensive priority

Medium

Recommended defensive actions

  • Update to a patched version of the WP24 Domain Check plugin, if available.
  • Limit access to the plugin settings form at options.php to trusted users only.
  • Implement additional security measures, such as input validation and output encoding, to prevent similar vulnerabilities.

Evidence notes

The CVE-2021-47984 vulnerability was reported by [email protected] and is referenced in the NVD database.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-47984 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-47984

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-47984 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-47984

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.