CVE-2026-31382 | Gainsight Assist Parameters error_description cross site scripting

VDB-352068 · CVE-2026-31382 · GCVE-0-2026-31382 GAINSIGHT ASSIST PARAMETERS ERROR_DESCRIPTION CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.2 $0-$5k 1.82+ Summaryinfo A vulnerability labeled as problematic has been found in Gainsight Assist. This affects an unknown part of the component Parameters Handler. The manipulation of the argument error_description results in cross site scripting. This vulnerability was named CVE-2026-31382. The attack may be performed from remote. There is no available exploit. Detailsinfo A vulnerability was found in Gainsight Assist (the affected version unknown). It has been classified as problematic. Affected is an unknown part of the component Parameters Handler. The manipulation of the argument error_description with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes: The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain's WAF using a Safari-specific onpagereveal payload. The weakness was presented by Christopher O'Boyle. The advisory is shared for download at rapid7.com. This vulnerability is traded as CVE-2026-31382 since 03/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Gainsight Name Assist CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.2 VulDB Meta Temp Score: 5.2 VulDB Base Score: 4.3 VulDB Temp Score: 4.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.1 CNA Vector (rapid7): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/09/2026 CVE reserved 03/20/2026 +11 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Advisory: rapid7.com Researcher: Christopher O'Boyle Status: Not defined CVE: CVE-2026-31382 (🔒) GCVE (CVE): GCVE-0-2026-31382 GCVE (VulDB): GCVE-100-352068 Entryinfo Created: 03/20/2026 14:59 Changes: 03/20/2026 14:59 (63) Complete: 🔍 Cache ID: 99:2F5:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸