CVE-2021-22706

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-21 · updated 2026-06-17
Weakness: CWE-79

Description

A CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to impersonate the user who manages the charging station or carry out actions on their behalf when crafted malicious parameters are submitted to the charging station web server.

Affected products

Schneider-Electric Evlink City Evc1S22P4 Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1
Schneider-Electric Evlink City Evc1S7P4 Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1
Schneider-Electric Evlink Parking Ev.2 Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1
Schneider-Electric Evlink Parking Evf2 Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1
Schneider-Electric Evlink Parking Evw2 Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1
Schneider-Electric Evlink Smart Wallbox Evb1A Firmware: before r8_v3.4.0.1 — fixed in r8_v3.4.0.1

How to fix

Upgrade to a fixed version: Schneider-Electric Evlink City Evc1S22P4 Firmware r8_v3.4.0.1; Schneider-Electric Evlink City Evc1S7P4 Firmware r8_v3.4.0.1; Schneider-Electric Evlink Parking Ev.2 Firmware r8_v3.4.0.1; Schneider-Electric Evlink Parking Evf2 Firmware r8_v3.4.0.1; Schneider-Electric Evlink Parking Evw2 Firmware r8_v3.4.0.1; Schneider-Electric Evlink Smart Wallbox Evb1A Firmware r8_v3.4.0.1. Check the vendor advisory for mitigations.

References

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