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CVE-2018-15448: Cisco Registered Envelope Service Information Disclosure Vulnerability

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-08 · updated 2026-06-17
• Weakness: CWE-16

Description

A vulnerability in the user management functions of Cisco Registered Envelope Service could allow an unauthenticated, remote attacker to discover sensitive user information. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability is due to an insecure configuration that allows improper indexing. An attacker could exploit this vulnerability by using a search engine to look for specific data strings. A successful exploit could allow the attacker to discover certain sensitive information about the application, including usernames.

Affected products

• Cisco Registered Envelope Service: all versions

References

• http://www.securityfocus.com/bid/105862
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-res-info-disc
• http://www.securityfocus.com/bid/105862
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-res-info-disc

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