What’s Vulnerable › Vulnerabilities

CVE-2021-35956

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-30 · updated 2026-06-17
• Weakness: CWE-79

Description

Stored cross-site scripting (XSS) in the embedded webserver of AKCP sensorProbe before SP480-20210624 enables remote authenticated attackers to introduce arbitrary JavaScript via the Sensor Description, Email (from/to/cc), System Name, and System Location fields.

Affected products

• Akcp Sensorprobe2 Firmware: before sp480-20210624 — fixed in sp480-20210624
• Akcp Sensorprobe4 Firmware: before sp480-20210624 — fixed in sp480-20210624
• Akcp Sensorprobe8-X20 Firmware: before sp480-20210624 — fixed in sp480-20210624
• Akcp Sensorprobe8-X60 Firmware: before sp480-20210624 — fixed in sp480-20210624
• Akcp Sensorprobe8 Firmware: before sp480-20210624 — fixed in sp480-20210624

How to fix

Upgrade to a fixed version: Akcp Sensorprobe2 Firmware sp480-20210624; Akcp Sensorprobe4 Firmware sp480-20210624; Akcp Sensorprobe8-X20 Firmware sp480-20210624; Akcp Sensorprobe8-X60 Firmware sp480-20210624; Akcp Sensorprobe8 Firmware sp480-20210624. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/163343/AKCP-sensorProbe-SPX476-Cross-Site-Scripting.html
• http://www.akcp.in.th/downloads/Firmwares/SP480-20210624.zip
• https://tbutler.org/2021/06/28/cve-2021-35956
• https://www.akcp.com/support-center/customer-login/sensor-probe-firmware-changelog/
• http://packetstormsecurity.com/files/163343/AKCP-sensorProbe-SPX476-Cross-Site-Scripting.html
• http://www.akcp.in.th/downloads/Firmwares/SP480-20210624.zip
• https://tbutler.org/2021/06/28/cve-2021-35956
• https://www.akcp.com/support-center/customer-login/sensor-probe-firmware-changelog/

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