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CVE-2026-42667 Bookly CVE debrief

CVE-2026-42667 is a HIGH severity vulnerability (CVSS Score: 7.5) affecting Bookly versions <= 27.4. This vulnerability allows unauthenticated sensitive data exposure. The vulnerability was published on [cvePublishedAt] and last modified on [cveModifiedAt].

Vendor
Bookly
Product
Unknown
CVSS
HIGH 7.5
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 Bookly versions <= 27.4 should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N and is classified under CWE-201.

Defensive priority

HIGH

Recommended defensive actions

  • Update Bookly to a version greater than 27.4.
  • Refer to [ref-4] for mitigation or vendor reference.

Evidence notes

The vendor and product information is currently unknown, but there is evidence from Patchstack that suggests the vulnerability affects the Bookly plugin.

Official resources

CVE-2026-42667 was published on 2026-06-15T21:16:56.513Z and last modified on 2026-06-15T21:24:32.790Z.