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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.

Official resources

CVE-2026-39579 was published on 2026-06-15T21:16:47.553Z and last modified on 2026-06-15T21:24:32.790Z.