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PatchSiren cyber security CVE debrief

CVE-2026-39465 MetaSlider CVE debrief

A critical vulnerability, CVE-2026-39465, was discovered in the Responsive Slider by MetaSlider plugin for WordPress, version 3.106.0 and earlier. This vulnerability allows for remote code execution (RCE) and has a CVSS score of 9.1, indicating a high severity level. The vulnerability was published on June 15, 2026, and last modified on the same day.

Vendor
MetaSlider
Product
Responsive Slider by MetaSlider
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Administrators and users of the Responsive Slider by MetaSlider plugin for WordPress should be aware of this vulnerability and take immediate action to mitigate the risk.

Technical summary

The vulnerability is caused by a weakness in the plugin's code, allowing an attacker to execute arbitrary code remotely. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Defensive priority

High

Recommended defensive actions

  • Update the Responsive Slider by MetaSlider plugin to a version that is not vulnerable.
  • Refer to the vendor's documentation and security advisories for more information on mitigating this vulnerability.

Evidence notes

The vulnerability was reported by Patchstack, a security research firm.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39465 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39465

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

  • CVE-2026-39465 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39465

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

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.