What’s Vulnerable › Vulnerabilities

CVE-2020-12256

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 95.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-18 · updated 2026-06-17
• Weakness: CWE-79

Description

rConfig 3.9.4 is vulnerable to reflected XSS. The devicemgmnt.php file improperly validates user input. An attacker can exploit this by crafting arbitrary JavaScript in the deviceId GET parameter to devicemgmnt.php.

Affected products

• rconfig: 3.9.4

References

• https://gist.github.com/farid007/8855031bad0e497264e4879efb5bc9f8
• https://gist.github.com/farid007/8855031bad0e497264e4879efb5bc9f8

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