Gainsight Assist
Monthly
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the error_description parameter of Gainsight Assist, allowing unauthenticated attackers to inject malicious JavaScript payloads that execute in victims' browsers. The vulnerability is particularly dangerous because attackers can bypass the application's Web Application Firewall (WAF) using Safari-specific event handlers such as onpagereveal, which are not typically filtered by standard XSS protections. While the CVSS score of 6.1 indicates moderate severity with limited direct impact (integrity and availability degradation rather than confidentiality breach), the attack requires minimal technical complexity and no special privileges, making it exploitable by any attacker who can craft a malicious URL and socially engineer a victim into clicking it.
Gainsight Assist contains an information disclosure vulnerability where user email addresses (PII) are exposed in base64-encoded format within the OAuth callback URL's state parameter. This affects all versions of Gainsight Assist and allows unauthenticated remote attackers to extract sensitive personal information with no user interaction required. The vulnerability has a CVSS score of 5.3 (moderate) with confirmed disclosure via Rapid7, and patch availability has been documented in vendor advisories.
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the error_description parameter of Gainsight Assist, allowing unauthenticated attackers to inject malicious JavaScript payloads that execute in victims' browsers. The vulnerability is particularly dangerous because attackers can bypass the application's Web Application Firewall (WAF) using Safari-specific event handlers such as onpagereveal, which are not typically filtered by standard XSS protections. While the CVSS score of 6.1 indicates moderate severity with limited direct impact (integrity and availability degradation rather than confidentiality breach), the attack requires minimal technical complexity and no special privileges, making it exploitable by any attacker who can craft a malicious URL and socially engineer a victim into clicking it.
Gainsight Assist contains an information disclosure vulnerability where user email addresses (PII) are exposed in base64-encoded format within the OAuth callback URL's state parameter. This affects all versions of Gainsight Assist and allows unauthenticated remote attackers to extract sensitive personal information with no user interaction required. The vulnerability has a CVSS score of 5.3 (moderate) with confirmed disclosure via Rapid7, and patch availability has been documented in vendor advisories.