Is CVE-2026-42458 actively exploited?

No active exploitation of CVE-2026-42458 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42458 be exploited remotely?

Yes. CVE-2026-42458 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42458?

CVE-2026-42458 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-42458

CWE-87Published: May 15, 2026· Updated: May 18, 2026

5.3

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.6th

Official Description

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, there is a reflected XSS vulnerability under admin panel -> System -> Import/Export -> Dataflow - Profiles. This vulnerability is fixed in 20.18.0.

NVD Source

Technical Analysis

CVE-2026-42458 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (P) is needed, which slightly reduces the risk of mass automated attacks.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionP

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X