WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or misrouting legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.

The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.

Charging station authentication identifiers are publicly accessible via web-based mapping platforms.

Chargemap contains a stored cross-site scripting vulnerability that allows a remote, authenticated attacker to craft a malicious payload in the user profile page that executes when another user views the attacker's profile. Fixed 2026-07-17.

Chargemap contains a stored cross site scripting vulnerability. A remote, unauthenticated attacker could craft a payload in the username field of the account registration page and associate the new account with a victim's email. The attacker could send a forgotten password request to the victim, and the payload would execute when a victim opens the link. Fixed 2026-07-17.

Chargemap contains an open redirect vulnerability in the authentication login endpoint. A remote, unauthenticated attacker could send a crafted URL to a victim and redirect them to an attacker controlled domain. Fixed 2026-07-17.