PatchSiren cyber security CVE debrief

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.

Sources and references

Verified primary and authoritative sources

CVE-2026-42667 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-42667

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-42667 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42667

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.