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PatchSiren cyber security CVE debrief

CVE-2026-39491 artbees CVE debrief

A Subscriber Cross Site Scripting (XSS) vulnerability exists in JupiterX Core plugin versions <= 4.14.1. This vulnerability has been assigned a CVSS score of 6.5, indicating a Medium severity level. The vulnerability was published on [cvePublishedAt](https://www.cve.org/CVERecord?id=CVE-2026-39491) and last modified on [cveModifiedAt](https://nvd.nist.gov/vuln/detail/CVE-2026-39491).

Vendor
artbees
Product
JupiterX Core
CVSS
MEDIUM 6.5
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

Users of JupiterX Core plugin versions <= 4.14.1 should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability is a Cross Site Scripting (XSS) issue, which occurs when user input is not properly sanitized, allowing an attacker to inject malicious scripts. In this case, the vulnerability affects subscribers and has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Defensive priority

Medium

Recommended defensive actions

  • Update JupiterX Core plugin to a version greater than 4.14.1.
  • Refer to [ref-4](https://patchstack.com/database/wordpress/plugin/jupiterx-core/vulnerability/wordpress-jupiterx-core-plugin-4-14-1-cross-site-scripting-xss-vulnerability?_s_id=cve) for mitigation or vendor reference.

Evidence notes

The CVE record [cve-org] and NVD detail [nvd] provide official information about this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39491 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39491

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

  • CVE-2026-39491 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39491

    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.