How severe is CVE-2023-6809?

CVE-2023-6809 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-6809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6809?

CVE-2023-6809 affects Gonahkar Custom Fields Shortcode. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6809?

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

Does CVE-2023-6809 have an EU (EUVD) identifier?

Yes. CVE-2023-6809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59020.

When was CVE-2023-6809 published?

CVE-2023-6809 was published on 2024-03-13 and last updated on 2026-06-17.

CVE-2023-6809

CVE-2023-6809 is a medium-severity vulnerability in Gonahkar Custom Fields Shortcode with a CVSS 3.x base score of 6.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59020
Weakness: CWE-79
Affected product: Gonahkar Custom Fields Shortcode
Published: 2024-03-13
Last modified: 2026-06-17

Description

The Custom fields shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's cf shortcode in all versions up to, and including, 0.1 due to insufficient input sanitization and output escaping on user supplied custom post meta values. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2023-6809?: The Custom fields shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's cf shortcode in all versions up to, and including, 0.1 due to insufficient input sanitization and output escaping on user supplied custom post meta values. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2023-6809?: CVE-2023-6809 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-6809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6809?: CVE-2023-6809 affects Gonahkar Custom Fields Shortcode. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6809 have an EU (EUVD) identifier?: Yes. CVE-2023-6809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59020.
When was CVE-2023-6809 published?: CVE-2023-6809 was published on 2024-03-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gonahkar:custom_fields_shortcode:0.1:*:*:*:*:wordpress:*:*

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