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CVE-2020-37148: P5 FNIP-8x16A/FNIP-4xSH 1.0.20, 1.0.11 - Stored Cross-Site Scripting (XSS)

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-05 · updated 2026-06-17
• Weakness: CWE-79

Description

P5 FNIP-8x16A/FNIP-4xSH versions 1.0.20 and 1.0.11 suffer from a stored cross-site scripting vulnerability. Input passed to several GET/POST parameters is not properly sanitized before being returned to the user, allowing attackers to execute arbitrary HTML and script code in a user's browser session in the context of the affected site. This can be exploited by submitting crafted input to the label modification functionality, such as the 'lab4' parameter in config.html.

Affected products

• P5 FNIP-4xSH: 1.0.20, 1.0.11
• P5 FNIP-8x16A: 1.0.20, 1.0.11

References

• https://exchange.xforce.ibmcloud.com/vulnerabilities/176993
• https://packetstormsecurity.com/files/156170/P5-FNIP-8x16A-FNIP-4xSH-1.0.20-CSRF-XSS.html
• https://www.exploit-db.com/exploits/48362
• https://www.p5.hu/
• https://www.vulncheck.com/advisories/p-fnip-xafnip-xsh-stored-cross-site-scripting-xss
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5564.php

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