CVE-2021-35956
CVE-2021-35956 is a medium-severity vulnerability in Akcp Sensorprobe2 Firmware with a CVSS 3.x base score of 5.4. 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 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 3% (87th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Akcp Sensorprobe2 Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2021-35956?
- 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.
- How severe is CVE-2021-35956?
- CVE-2021-35956 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-35956 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-35956?
- CVE-2021-35956 primarily affects Akcp Sensorprobe2 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-35956?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-35956 published?
- CVE-2021-35956 was published on 2021-06-30 and last updated on 2026-06-17.
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/
Affected products (5)
- cpe:2.3:o:akcp:sensorprobe2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:akcp:sensorprobe4_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:akcp:sensorprobe8_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:akcp:sensorprobe8-x20_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:akcp:sensorprobe8-x60_firmware:*:*:*:*:*:*:*:*
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