CVE-2021-35956

MEDIUM

AKCP sensorProbe <SP480-20210624 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2021-35956. PoCs published by Tyler Butler, tcbutler320.

AI-analyzed exploit summary This exploit demonstrates stored XSS vulnerabilities in AKCP sensorProbe's web interface via System Settings, Email Settings, and Sensor Description fields. The PoC includes HTTP POST requests with malicious payloads that trigger JavaScript execution when rendered.

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.

Exploits (2)

exploitdb WORKING POC
by Tyler Butler · textwebappshardware
https://www.exploit-db.com/exploits/50080

This exploit demonstrates stored XSS vulnerabilities in AKCP sensorProbe's web interface via System Settings, Email Settings, and Sensor Description fields. The PoC includes HTTP POST requests with malicious payloads that trigger JavaScript execution when rendered.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: AKCP sensorProbe SPX476 < SP480-20210624
Auth required
Prerequisites: Authenticated access to the AKCP sensorProbe web interface
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by tcbutler320 · poc
https://github.com/tcbutler320/CVE-2021-35956

The repository provides functional HTTP request examples demonstrating stored XSS vulnerabilities in AKCP sensorProbe's web interface via System Settings, Email Settings, and Sensor Description fields. The PoC includes crafted payloads with SVG-based JavaScript execution.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: AKCP sensorProbe < SP480-20210624
Auth required
Prerequisites: Authenticated access to the AKCP sensorProbe web interface
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (4)

Core 4
Core References
Permissions Required, Vendor Advisory x_refsource_misc
https://www.akcp.com/support-center/customer-login/sensor-probe-firmware-changelog/
Product, Vendor Advisory x_refsource_misc
http://www.akcp.in.th/downloads/Firmwares/SP480-20210624.zip
Exploit, Third Party Advisory x_refsource_misc
https://tbutler.org/2021/06/28/cve-2021-35956

Scores

CVSS v3 5.4
EPSS 0.0323
EPSS Percentile 86.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (5)
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
Published Jun 30, 2021
Tracked Since Feb 18, 2026