How severe is CVE-2023-40606?

CVE-2023-40606 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40606 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40606?

CVE-2023-40606 affects Kanbanwp Kanban Boards For Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40606?

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

When was CVE-2023-40606 published?

CVE-2023-40606 was published on 2023-12-29 and last updated on 2026-06-17.

CVE-2023-40606

CVE-2023-40606 is a critical-severity vulnerability in Kanbanwp Kanban Boards For Wordpress with a CVSS 3.x base score of 9.1. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Kanbanwp Kanban Boards For Wordpress
Published: 2023-12-29
Last modified: 2026-06-17

Description

Improper Control of Generation of Code ('Code Injection') vulnerability in Kanban for WordPress Kanban Boards for WordPress.This issue affects Kanban Boards for WordPress: from n/a through 2.5.21.

Frequently asked questions

What is CVE-2023-40606?: Improper Control of Generation of Code ('Code Injection') vulnerability in Kanban for WordPress Kanban Boards for WordPress.This issue affects Kanban Boards for WordPress: from n/a through 2.5.21.
How severe is CVE-2023-40606?: CVE-2023-40606 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40606 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40606?: CVE-2023-40606 affects Kanbanwp Kanban Boards For Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40606?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-40606 published?: CVE-2023-40606 was published on 2023-12-29 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/kanban/wordpress-kanban-boards-for-wordpress-plugin-2-5-21-arbitrary-code-execution-vulnerability?_s_id=cve

Affected products (1)

cpe:2.3:a:kanbanwp:kanban_boards_for_wordpress:*:*:*:*:*:wordpress:*:*

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