Vulnerability · Published Mar 20, 2026 · Assigned by rapid7
CVE-2026-31381Gainsight Assist plugin information disclosure
Medium 5.3
In plain English
A medium-severity security flaw in Gainsight Assist from Gainsight. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 75.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An attacker can extract user email addresses (PII) exposed in base64 encoding via the state parameter in the OAuth callback URL.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Gainsight | Gainsight Assist | see references |
Weakness: CWE-598 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N