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PatchSiren cyber security CVE debrief

CVE-2026-39579 bPlugins CVE debrief

CVE-2026-39579 is a high-severity vulnerability in the B Blocks plugin, affecting versions up to 2.0.31. The vulnerability allows for contributor privilege escalation, with a CVSS score of 8.8. The CVE was published on 2026-06-15T21:16:47.553Z and last modified on 2026-06-15T21:24:32.790Z. The vendor and product information is currently unknown, but evidence suggests a connection to Patchstack.

Vendor
bPlugins
Product
B Blocks
CVSS
HIGH 8.8
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 the B Blocks plugin, particularly those with contributor roles, should be aware of this vulnerability and take necessary precautions.

Technical summary

The vulnerability, classified under CWE-266, allows for privilege escalation due to inadequate access controls. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Defensive priority

High

Recommended defensive actions

  • Update the B Blocks plugin to a version beyond 2.0.31.
  • Restrict contributor privileges to minimize potential impact.
  • Monitor for suspicious activity related to the B Blocks plugin.

Evidence notes

Evidence from Patchstack suggests a connection to the B Blocks plugin.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39579 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39579

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

  • CVE-2026-39579 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39579

    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.