How severe is CVE-2025-66102?

CVE-2025-66102 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-66102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-66102?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-66102 have an EU (EUVD) identifier?

Yes. CVE-2025-66102 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204046.

When was CVE-2025-66102 published?

CVE-2025-66102 was published on 2025-12-18 and last updated on 2026-06-17.

CVE-2025-66102

CVE-2025-66102 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204046
Weakness: CWE-79
Published: 2025-12-18
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FolioVision FV Antispam fv-antispam allows Reflected XSS.This issue affects FV Antispam: from n/a through <= 2.7.

Frequently asked questions

What is CVE-2025-66102?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FolioVision FV Antispam fv-antispam allows Reflected XSS.This issue affects FV Antispam: from n/a through <= 2.7.
How severe is CVE-2025-66102?: CVE-2025-66102 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-66102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-66102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-66102 have an EU (EUVD) identifier?: Yes. CVE-2025-66102 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204046.
When was CVE-2025-66102 published?: CVE-2025-66102 was published on 2025-12-18 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/fv-antispam/vulnerability/wordpress-fv-antispam-plugin-2-7-cross-site-scripting-xss-vulnerability?_s_id=cve

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