How severe is CVE-2023-6988?

CVE-2023-6988 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-2023-6988 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6988?

CVE-2023-6988 affects Extendthemes Colibri Page Builder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6988?

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

Does CVE-2023-6988 have an EU (EUVD) identifier?

Yes. CVE-2023-6988 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59180.

When was CVE-2023-6988 published?

CVE-2023-6988 was published on 2024-01-11 and last updated on 2026-06-17.

CVE-2023-6988

CVE-2023-6988 is a medium-severity vulnerability in Extendthemes Colibri Page Builder 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% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59180
Weakness: CWE-79
Affected product: Extendthemes Colibri Page Builder
Published: 2024-01-11
Last modified: 2026-06-17

Description

The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's extend_builder_render_js shortcode in all versions up to, and including, 1.0.239 due to insufficient input sanitization and output escaping on user supplied attributes. 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-2023-6988?: The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's extend_builder_render_js shortcode in all versions up to, and including, 1.0.239 due to insufficient input sanitization and output escaping on user supplied attributes. 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-2023-6988?: CVE-2023-6988 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-2023-6988 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6988?: CVE-2023-6988 affects Extendthemes Colibri Page Builder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6988?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6988 have an EU (EUVD) identifier?: Yes. CVE-2023-6988 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59180.
When was CVE-2023-6988 published?: CVE-2023-6988 was published on 2024-01-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:extendthemes:colibri_page_builder:*:*:*:*:*:wordpress:*:*

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