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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.

Official resources

CVE-2026-39491 was published on 2026-06-15T21:16:44.740Z and last modified on 2026-06-15T21:24:32.790Z.