How severe is CVE-2023-0873?

CVE-2023-0873 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-0873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0873?

CVE-2023-0873 affects Kanbanwp Kanban Boards For Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0873?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0873 published?

CVE-2023-0873 was published on 2023-06-27 and last updated on 2026-06-17.

CVE-2023-0873

CVE-2023-0873 is a medium-severity vulnerability in Kanbanwp Kanban Boards For Wordpress with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Kanbanwp Kanban Boards For Wordpress
Published: 2023-06-27
Last modified: 2026-06-17

Description

The Kanban Boards for WordPress plugin before 2.5.21 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Frequently asked questions

What is CVE-2023-0873?: The Kanban Boards for WordPress plugin before 2.5.21 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
How severe is CVE-2023-0873?: CVE-2023-0873 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-0873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0873?: CVE-2023-0873 affects Kanbanwp Kanban Boards For Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0873 published?: CVE-2023-0873 was published on 2023-06-27 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/8816d4c1-9e8e-4b6f-a36a-10a98a7ccfcd

Affected products (1)

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

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