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PatchSiren cyber security CVE debrief

CVE-2026-4303 osamaesh CVE debrief

The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wsm_showDayStatsGraph' shortcode in all versions up to, and including, 8.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vendor
osamaesh
Product
WP Visitor Statistics (Real Time Traffic)
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-20
Advisory published
2026-04-08
Advisory updated
2026-07-20

Who should care

Users of the WP Visitor Statistics (Real Time Traffic) plugin for WordPress should be aware of this vulnerability and take immediate action to protect their sites. This vulnerability requires contributor-level access and above, and can lead to the injection of arbitrary web scripts.

Technical summary

The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wsm_showDayStatsGraph' shortcode. The vulnerability exists due to insufficient input sanitization and output escaping on user supplied attributes. An attacker with contributor-level access and above can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Defensive priority

Medium priority should be given to updating the WP Visitor Statistics (Real Time Traffic) plugin to a version that addresses this vulnerability.

Recommended defensive actions

  • Update the WP Visitor Statistics (Real Time Traffic) plugin to a version that addresses this vulnerability.
  • Restrict access to the plugin's settings and functionality to prevent unauthorized changes.
  • Monitor your WordPress site for suspicious activity and injected scripts.
  • Consider implementing additional security measures such as Web Application Firewalls (WAFs) and intrusion detection systems.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-04-08T10:16:02.173Z and was last modified on 2026-07-20T20:10:00.110Z. The NVD entry is currently Deferred. Evidence is limited to public CVE and NVD information. Defenders should verify the vulnerability status of their WP Visitor Statistics (Real Time Traffic) plugin deployments and review the official CVE record for details. Additional verification is recommended due to limited source information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-4303 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-4303

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

  • CVE-2026-4303 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-4303

    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.