How severe is CVE-2024-21550?

CVE-2024-21550 has a CVSS 3.x base score of 6.1, rated medium 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 none.

Is CVE-2024-21550 being actively exploited?

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

What products are affected by CVE-2024-21550?

CVE-2024-21550 primarily affects Steve-community Steve. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21550?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21550 have an EU (EUVD) identifier?

Yes. CVE-2024-21550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19199.

When was CVE-2024-21550 published?

CVE-2024-21550 was published on 2024-08-12 and last updated on 2026-06-17.

CVE-2024-21550

CVE-2024-21550 is a medium-severity vulnerability in Steve-community Steve with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19199
Weakness: CWE-79
Affected product: Steve-community Steve
Published: 2024-08-12
Last modified: 2026-06-17

Description

SteVe is an open platform that implements different version of the OCPP protocol for Electric Vehicle charge points, acting as a central server for management of registered charge points. Attackers can inject arbitrary HTML and Javascript code via WebSockets leading to persistent Cross-Site Scripting in the SteVe management interface.

Frequently asked questions

What is CVE-2024-21550?: SteVe is an open platform that implements different version of the OCPP protocol for Electric Vehicle charge points, acting as a central server for management of registered charge points. Attackers can inject arbitrary HTML and Javascript code via WebSockets leading to persistent Cross-Site Scripting in the SteVe management interface.
How severe is CVE-2024-21550?: CVE-2024-21550 has a CVSS 3.x base score of 6.1, rated medium 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 none.
Is CVE-2024-21550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21550?: CVE-2024-21550 primarily affects Steve-community Steve. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21550 have an EU (EUVD) identifier?: Yes. CVE-2024-21550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19199.
When was CVE-2024-21550 published?: CVE-2024-21550 was published on 2024-08-12 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:steve-community:steve:*:*:*:*:*:*:*:*
cpe:2.3:a:steve-community:steve:3.6.0:*:*:*:*:*:*:*
cpe:2.3:a:steve-community:steve:3.7.0:*:*:*:*:*:*:*

More vulnerabilities in Steve-community Steve

CVE-2024-25407 — High (CVSS 7.5): SteVe v3.6.0 was discovered to use predictable transaction ID's when receiving a StartTransaction request. This…
CVE-2026-28230 — Medium (CVSS 6.3): SteVe is an open-source EV charging station management system. In versions up to and including 3.11.0, when a charger…
CVE-2024-44843 — Medium (CVSS 5.9): An issue in the web socket handshake process of SteVe v3.7.1 allows attackers to bypass authentication and execute…

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