How severe is CVE-2026-34887?

CVE-2026-34887 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-34887 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34887?

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

Does CVE-2026-34887 have an EU (EUVD) identifier?

Yes. CVE-2026-34887 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17355.

When was CVE-2026-34887 published?

CVE-2026-34887 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-34887

CVE-2026-34887 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17355
Weakness: CWE-79
Published: 2026-03-31
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Kubio AI Page Builder allows Stored XSS.This issue affects Kubio AI Page Builder: from n/a through 2.7.0.

Frequently asked questions

What is CVE-2026-34887?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Kubio AI Page Builder allows Stored XSS.This issue affects Kubio AI Page Builder: from n/a through 2.7.0.
How severe is CVE-2026-34887?: CVE-2026-34887 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-34887 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-34887?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34887 have an EU (EUVD) identifier?: Yes. CVE-2026-34887 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17355.
When was CVE-2026-34887 published?: CVE-2026-34887 was published on 2026-03-31 and last updated on 2026-06-17.

References

https://patchstack.com/database/wordpress/plugin/kubio/vulnerability/wordpress-kubio-ai-page-builder-plugin-2-7-0-cross-site-scripting-xss-vulnerability?_s_id=cve

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