How severe is CVE-2026-42736?

CVE-2026-42736 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-42736 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-42736?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-42736 have an EU (EUVD) identifier?

Yes. CVE-2026-42736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32188.

When was CVE-2026-42736 published?

CVE-2026-42736 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-42736

CVE-2026-42736 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32188
Weakness: CWE-639
Published: 2026-05-27
Last modified: 2026-06-17

Description

Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through <= 2.14.16.

Frequently asked questions

What is CVE-2026-42736?: Authorization Bypass Through User-Controlled Key vulnerability in wordplus BP Better Messages bp-better-messages allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects BP Better Messages: from n/a through <= 2.14.16.
How severe is CVE-2026-42736?: CVE-2026-42736 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-42736 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-42736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-42736 have an EU (EUVD) identifier?: Yes. CVE-2026-42736 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32188.
When was CVE-2026-42736 published?: CVE-2026-42736 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/bp-better-messages/vulnerability/wordpress-bp-better-messages-plugin-2-14-16-insecure-direct-object-references-idor-vulnerability?_s_id=cve

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