{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Blesta",
          "vendor": "Blesta",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Egidio Romano"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "---------------------------------------------------------------------------\nBlesta \u003c= 5.13.1 (confirm_url) Reflected Cross-Site Scripting Vulnerability\n---------------------------------------------------------------------------\n\n\n[-] Software Link:\n\nhttps://www.blesta.com\n\n\n[-] Affected Versions:\n\nAll versions from 3.2.0 to 5.13.1.\n\n\n[-] Vulnerability Description:\n\nUser input passed through the \"confirm_url\" GET parameter to the\n/dialog/confirm and /client_dialog/confirm/ endpoints is not properly\nsanitized before being used to generate HTML output; specifically,\nbefore being used as action attribute of an HTML form. This can be\nexploited by attackers to perform 2-clicks Reflected Cross-Site\nScripting (XSS) attacks.\n\n\n[-] Proof of Concept:\n\nAn attacker may trick a victim Blesta user into clicking on links like these:\n\nhttp://[blesta]/dialog/confirm/?confirm_url=javascript:alert(\u0027XSS\u0027)\nhttp://[blesta]/client_dialog/confirm/?confirm_url=javascript:eval(atob(\u0027YWxlcnQoJ1hTUyBvbiAnK2RvY3VtZW50LmRvbWFpbik=\u0027))\n\nWhen the victim user clicks on the malicious link and then they also\nclick on the \"Yes\" button, the form will be submitted, and the\nattacker-controlled JavaScript code will be executed on the victim\nuser\u0027s browser.\n\n\n[-] Solution:\n\nApply the vendor patch or upgrade to version 5.13.2 or later.\n\n\n[-] Disclosure Timeline:\n\n[19/01/2026] - Vendor notified\n\n[22/01/2026] - CVE identifier requested\n\n[28/01/2026] - Version 5.13.2 released\n\n[31/01/2026] - Version 5.13.3 released to address regressions\nintroduced in 5.13.2\n\n[03/02/2026] - CVE identifier assigned\n\n[04/02/2026] - Public disclosure\n\n\n[-] CVE Reference:\n\nThe Common Vulnerabilities and Exposures project (cve.org) has\nassigned the name CVE-2026-25616 to this vulnerability.\n\n\n[-] Credits:\n\nVulnerability discovered by Egidio Romano.\n\n\n[-] Other References:\n\nhttps://www.blesta.com/2026/01/28/security-advisory/\n\n\n[-] Original Advisory:\n\nhttps://karmainsecurity.com/KIS-2026-01\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T13:33:02Z",
        "orgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
        "shortName": "VULNARCHIVE"
      },
      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://vuln.freearchive.org/archive/full-disclosure/2026/Feb/0"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://seclists.org/fulldisclosure/2026/Feb/0"
        },
        {
          "url": "https://karmainsecurity.com/KIS-2026-01"
        },
        {
          "url": "https://nmap.org/mailman/listinfo/fulldisclosure"
        },
        {
          "url": "https://seclists.org/fulldisclosure/"
        },
        {
          "url": "https://www.blesta.com"
        },
        {
          "url": "https://www.blesta.com/2026/01/28/security-advisory/"
        }
      ],
      "source": {
        "defect": [
          "https://seclists.org/fulldisclosure/2026/Feb/0"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "[KIS-2026-01] Blesta \u003c= 5.13.1 (confirm_url) Reflected Cross-Site Scripting Vulnerability",
      "x_gcve": [
        {
          "recordType": "reference",
          "relationships": [
            {
              "destId": "CVE-2026-25616",
              "type": "related"
            }
          ],
          "vulnId": "GCVE-1988-2026-0231",
          "x_vulnarchive": {
            "archiveUrl": "https://vuln.freearchive.org/archive/full-disclosure/2026/Feb/0",
            "automated": true,
            "contentSha256": "f8b50e10b96c70923c07d3f0fe014dbc4bb1cadf852eaf8ee4664f764af8daf3",
            "evidenceScore": 7,
            "messageId": "",
            "originalUrl": "https://seclists.org/fulldisclosure/2026/Feb/0",
            "policy": "vulnarchive-1",
            "sourceFormat": "text/html",
            "sourcePublishedAt": "2026-02-04T10:47:47Z"
          }
        },
        {
          "recordType": "advisory",
          "vulnId": "gcve-1988-2026-0231"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4e2abfbf-4a2a-4b76-a4e0-d77c18ba156c",
    "assignerShortName": "VULNARCHIVE",
    "datePublished": "2026-09-08T07:57:43Z",
    "dateUpdated": "2026-09-09T13:33:02Z",
    "state": "PUBLISHED",
    "vulnId": "GCVE-1988-2026-0231"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}