How severe is CVE-2026-40788?

CVE-2026-40788 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-40788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40788?

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-2026-40788 have an EU (EUVD) identifier?

Yes. CVE-2026-40788 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36991.

When was CVE-2026-40788 published?

CVE-2026-40788 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-40788

CVE-2026-40788 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36991
Weakness: CWE-862
Published: 2026-06-15
Last modified: 2026-06-17

Description

Subscriber Broken Access Control in ChatBot <= 7.9.7 versions.

Frequently asked questions

What is CVE-2026-40788?: Subscriber Broken Access Control in ChatBot <= 7.9.7 versions.
How severe is CVE-2026-40788?: CVE-2026-40788 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-40788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40788?: 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-2026-40788 have an EU (EUVD) identifier?: Yes. CVE-2026-40788 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36991.
When was CVE-2026-40788 published?: CVE-2026-40788 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://patchstack.com/database/wordpress/plugin/chatbot/vulnerability/wordpress-chatbot-plugin-7-9-7-broken-access-control-vulnerability?_s_id=cve

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