How severe is CVE-2025-55998?

CVE-2025-55998 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-55998 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55998?

CVE-2025-55998 affects Mezereon Smart Search And Filter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55998?

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-2025-55998 have an EU (EUVD) identifier?

Yes. CVE-2025-55998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27145.

When was CVE-2025-55998 published?

CVE-2025-55998 was published on 2025-09-08 and last updated on 2026-06-17.

CVE-2025-55998

CVE-2025-55998 is a high-severity vulnerability in Mezereon Smart Search And Filter with a CVSS 3.x base score of 8.1. 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 8.1)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27145
Weakness: CWE-79
Affected product: Mezereon Smart Search And Filter
Published: 2025-09-08
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability in Smart Search & Filter Shopify and BigCommerce apps allows a remote attacker to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into several filter parameter

Frequently asked questions

What is CVE-2025-55998?: A cross-site scripting (XSS) vulnerability in Smart Search & Filter Shopify and BigCommerce apps allows a remote attacker to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into several filter parameter
How severe is CVE-2025-55998?: CVE-2025-55998 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-55998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55998?: CVE-2025-55998 affects Mezereon Smart Search And Filter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55998?: 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-2025-55998 have an EU (EUVD) identifier?: Yes. CVE-2025-55998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27145.
When was CVE-2025-55998 published?: CVE-2025-55998 was published on 2025-09-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mezereon:smart_search_and_filter:1.0:*:*:*:*:*:*:*

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