CVE-2026-63010 (GCVE-0-2026-63010)

Vulnerability from cvelistv5 – Published: 2026-11-10 16:35 – Updated: 2026-11-10 16:35
VLAI
Title
Group-Office: Stored XSS via Manual Reminders
Summary
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.172, 25.0.108, and 26.0.33, a low-privileged user can create manual reminders containing arbitrary HTML/JavaScript and assign them to any other user (including administrators). When the victim's browser polls for pending notifications, the payload renders unsanitized as innerHTML in the ExtJS notification panel, achieving Stored Cross-Site Scripting (XSS) leading to full Account Takeover (ATO) of the victim's session. This issue has been patched in versions 6.8.172, 25.0.108, and 26.0.33.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
Intermesh groupoffice Affected: < 6.8.172
Affected: < 25.0.108
Affected: < 26.0.33
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "groupoffice",
          "vendor": "Intermesh",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.8.172"
            },
            {
              "status": "affected",
              "version": "\u003c 25.0.108"
            },
            {
              "status": "affected",
              "version": "\u003c 26.0.33"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.172, 25.0.108, and 26.0.33, a low-privileged user can create manual reminders containing arbitrary HTML/JavaScript and assign them to any other user (including administrators). When the victim\u0027s browser polls for pending notifications, the payload renders unsanitized as innerHTML in the ExtJS notification panel, achieving Stored Cross-Site Scripting (XSS) leading to full Account Takeover (ATO) of the victim\u0027s session. This issue has been patched in versions 6.8.172, 25.0.108, and 26.0.33."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-80",
              "description": "CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "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": "2026-11-10T16:35:20.103Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-jw34-6g49-r6cw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-jw34-6g49-r6cw"
        },
        {
          "name": "https://github.com/Intermesh/groupoffice/releases/tag/v25.0.108",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Intermesh/groupoffice/releases/tag/v25.0.108"
        },
        {
          "name": "https://github.com/Intermesh/groupoffice/releases/tag/v26.0.33",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Intermesh/groupoffice/releases/tag/v26.0.33"
        },
        {
          "name": "https://github.com/Intermesh/groupoffice/releases/tag/v6.8.172",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Intermesh/groupoffice/releases/tag/v6.8.172"
        }
      ],
      "source": {
        "advisory": "GHSA-jw34-6g49-r6cw",
        "discovery": "UNKNOWN"
      },
      "title": "Group-Office: Stored XSS via Manual Reminders"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-63010",
    "datePublished": "2026-11-10T16:35:20.103Z",
    "dateReserved": "2026-07-14T23:10:57.033Z",
    "dateUpdated": "2026-11-10T16:35:20.103Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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