CVE-2026-31381 (GCVE-0-2026-31381)

Vulnerability from cvelistv5 – Published: 2026-03-20 13:02 – Updated: 2026-03-23 10:21
VLAI
Title
Gainsight Assist plugin information disclosure
Summary
An attacker can extract user email addresses (PII) exposed in base64 encoding via the state parameter in the OAuth callback URL.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-598 - Use of GET request method with sensitive query strings
Assigner
References
Impacted products
Vendor Product Version
Gainsight Gainsight Assist Unknown: 0 (semver)
Create a notification for this product.
Date Public
2026-03-20 13:00
Credits
Christopher O’Boyle, Cybersecurity Advisor at Rapid7
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.