What’s Vulnerable › Vulnerabilities

CVE-2023-20181

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-03 · updated 2026-06-17
• Weakness: CWE-80

Description

A vulnerability in the web-based management interface of Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to conduct XSS attacks. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected products

• Cisco Spa500Ds Firmware: all versions
• Cisco Spa500S Firmware: all versions
• Cisco Spa501G Firmware: all versions
• Cisco Spa502G Firmware: all versions
• Cisco Spa504G Firmware: all versions
• Cisco Spa508G Firmware: all versions
• Cisco Spa509G Firmware: all versions
• Cisco Spa512G Firmware: all versions
• Cisco Spa514G Firmware: all versions
• Cisco Spa525 Firmware: all versions
• Cisco Spa525G2 Firmware: all versions
• Cisco Spa525G Firmware: all versions

References

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-web-multi-7kvPmu2F
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-web-multi-7kvPmu2F

Get alerted when CVE-2023-20181 or the next vulnerability affects your stack