CVE-2026-31382 (GCVE-0-2026-31382)

Vulnerability from cvelistv5 – Published: 2026-03-20 13:04 – Updated: 2026-03-23 10:21
VLAI?
Title
Gainsight Assist reflected XSS/HTML injection
Summary
The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain's WAF using a Safari-specific onpagereveal payload.
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
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

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-31382",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-20T13:42:36.673080Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-20T13:42:41.884Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Gainsight Assist",
          "vendor": "Gainsight",
          "versions": [
            {
              "status": "unknown",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Christopher O\u2019Boyle, Cybersecurity Advisor at Rapid7"
        }
      ],
      "datePublic": "2026-03-20T13:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain\u0027s WAF using a Safari-specific onpagereveal payload."
            }
          ],
          "value": "The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain\u0027s WAF using a Safari-specific onpagereveal payload."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-23T10:21:50.305Z",
        "orgId": "9974b330-7714-4307-a722-5648477acda7",
        "shortName": "rapid7"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.rapid7.com/blog/post/ve-cve-2026-31381-cve-2026-31382-gainsight-assist-information-disclosure-xss-fixed/"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://communities.gainsight.com/community-news-2/recent-gainsight-assist-plugin-remediations-cve-2026-31381-and-cve-2026-31382-30587"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Gainsight Assist reflected XSS/HTML injection",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
    "assignerShortName": "rapid7",
    "cveId": "CVE-2026-31382",
    "datePublished": "2026-03-20T13:04:45.195Z",
    "dateReserved": "2026-03-09T09:05:14.106Z",
    "dateUpdated": "2026-03-23T10:21:50.305Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-31382\",\"sourceIdentifier\":\"cve@rapid7.com\",\"published\":\"2026-03-20T14:16:14.727\",\"lastModified\":\"2026-03-24T15:54:09.400\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain\u0027s WAF using a Safari-specific onpagereveal payload.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@rapid7.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"cve@rapid7.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://communities.gainsight.com/community-news-2/recent-gainsight-assist-plugin-remediations-cve-2026-31381-and-cve-2026-31382-30587\",\"source\":\"cve@rapid7.com\"},{\"url\":\"https://www.rapid7.com/blog/post/ve-cve-2026-31381-cve-2026-31382-gainsight-assist-information-disclosure-xss-fixed/\",\"source\":\"cve@rapid7.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-31382\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-20T13:42:36.673080Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-20T13:42:38.562Z\"}}], \"cna\": {\"title\": \"Gainsight Assist reflected XSS/HTML injection\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Christopher O\\u2019Boyle, Cybersecurity Advisor at Rapid7\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Gainsight\", \"product\": \"Gainsight Assist\", \"versions\": [{\"status\": \"unknown\", \"version\": \"0\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-03-20T13:00:00.000Z\", \"references\": [{\"url\": \"https://www.rapid7.com/blog/post/ve-cve-2026-31381-cve-2026-31382-gainsight-assist-information-disclosure-xss-fixed/\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://communities.gainsight.com/community-news-2/recent-gainsight-assist-plugin-remediations-cve-2026-31381-and-cve-2026-31382-30587\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain\u0027s WAF using a Safari-specific onpagereveal payload.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The error_description parameter is vulnerable to Reflected XSS. An attacker can bypass the domain\u0027s WAF using a Safari-specific onpagereveal payload.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"9974b330-7714-4307-a722-5648477acda7\", \"shortName\": \"rapid7\", \"dateUpdated\": \"2026-03-23T10:21:50.305Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-31382\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-23T10:21:50.305Z\", \"dateReserved\": \"2026-03-09T09:05:14.106Z\", \"assignerOrgId\": \"9974b330-7714-4307-a722-5648477acda7\", \"datePublished\": \"2026-03-20T13:04:45.195Z\", \"assignerShortName\": \"rapid7\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…