CVE-2026-111048

The full cvelistV5 record. Download as CVE-2026-111048.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "FOSSBilling",
          "vendor": "FOSSBilling",
          "versions": [
            {
              "status": "affected",
              "version": ">= 0.1.0, < 0.8.9"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "FOSSBilling is an open source billing and client-management platform. From 0.1.0 until 0.8.9, the admin/support/note_create endpoint stores the note parameter without sanitization in the support_ticket_note table, and src/modules/Support/templates/admin/mod_support_tickets.html.twig renders each stored support ticket note through innerHTML in the admin ticket list. A staff user with only the support.manage_tickets permission can store HTML or JavaScript that executes when another staff member opens the ticket notes. The script runs with the viewing staff member's session and privileges, can read a CSRF token and accessible client or invoice data, and can perform administrative actions available to the viewer, including a Super Administrator. The ticket detail page is not affected because its Twig rendering uses autoescaping. This issue is fixed in version 0.8.9."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-02T17:46:11.754Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-493h-fvcx-6q62",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-493h-fvcx-6q62"
        },
        {
          "name": "https://github.com/FOSSBilling/FOSSBilling/pull/4548",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FOSSBilling/FOSSBilling/pull/4548"
        },
        {
          "name": "https://github.com/FOSSBilling/FOSSBilling/commit/87528920b6cb1ba6f113583253eb4d7abdd1d8c6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FOSSBilling/FOSSBilling/commit/87528920b6cb1ba6f113583253eb4d7abdd1d8c6"
        },
        {
          "name": "https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.9"
        }
      ],
      "source": {
        "advisory": "GHSA-493h-fvcx-6q62",
        "discovery": "UNKNOWN"
      },
      "title": "FOSSBilling: Low-privileged staff can run JavaScript in administrators' browsers via stored XSS in support ticket notes"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-111048",
    "datePublished": "2026-11-02T17:46:11.754Z",
    "dateReserved": "2026-10-15T12:47:13.664Z",
    "dateUpdated": "2026-11-02T17:46:11.754Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}