How severe is CVE-2025-66090?

CVE-2025-66090 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-2025-66090 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-2025-66090?

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

Does CVE-2025-66090 have an EU (EUVD) identifier?

Yes. CVE-2025-66090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198458.

When was CVE-2025-66090 published?

CVE-2025-66090 was published on 2025-11-21 and last updated on 2026-06-17.

CVE-2025-66090

CVE-2025-66090 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-2025-198458
Weakness: CWE-79
Published: 2025-11-21
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in sonalsinha21 SKT Skill Bar skt-skill-bar allows DOM-Based XSS.This issue affects SKT Skill Bar: from n/a through <= 2.5.

Frequently asked questions

What is CVE-2025-66090?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in sonalsinha21 SKT Skill Bar skt-skill-bar allows DOM-Based XSS.This issue affects SKT Skill Bar: from n/a through <= 2.5.
How severe is CVE-2025-66090?: CVE-2025-66090 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-2025-66090 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-2025-66090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66090 have an EU (EUVD) identifier?: Yes. CVE-2025-66090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198458.
When was CVE-2025-66090 published?: CVE-2025-66090 was published on 2025-11-21 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/skt-skill-bar/vulnerability/wordpress-skt-skill-bar-plugin-2-5-cross-site-scripting-xss-vulnerability?_s_id=cve

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