{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-54506",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-15T18:01:15.512Z",
        "datePublished": "2026-09-17T21:47:20.530Z",
        "dateUpdated": "2026-09-23T19:09:21.053Z"
    },
    "containers": {
        "cna": {
            "title": "Vvveb: Stored XSS via sanitizeHTML() bypass in user profile bio field",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-79",
                            "lang": "en",
                            "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-116",
                            "lang": "en",
                            "description": "CWE-116: Improper Encoding or Escaping of Output",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-185",
                            "lang": "en",
                            "description": "CWE-185: Incorrect Regular Expression",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.6,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/givanz/Vvveb/security/advisories/GHSA-5cg7-phhv-4qjr",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/givanz/Vvveb/security/advisories/GHSA-5cg7-phhv-4qjr"
                },
                {
                    "name": "https://github.com/givanz/Vvveb/commit/20a01ef08559ffdc97205edeecde86c8ea27e567",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/givanz/Vvveb/commit/20a01ef08559ffdc97205edeecde86c8ea27e567"
                },
                {
                    "name": "https://github.com/givanz/Vvveb/releases/tag/1.0.8.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/givanz/Vvveb/releases/tag/1.0.8.5"
                }
            ],
            "affected": [
                {
                    "vendor": "givanz",
                    "product": "Vvveb",
                    "versions": [
                        {
                            "version": "< 1.0.8.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-17T21:47:20.530Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.5, app/controller/user/profile.php accepts the user[bio] field and passes stored content through sanitizeHTML() in system/functions.php, whose on* event-handler regular expression omits the forward-slash delimiter and whose do-while condition compares the string to itself, so forbidden nested tags are removed only once. An Author-role or higher user can submit solidus-prefixed event-handler markup or nested forbidden tags that survive sanitization. The stored bio is rendered without sufficient output encoding on /author/{username}, in the admin user-management view, and potentially in comment displays, causing attacker-controlled JavaScript to execute when unauthenticated visitors, administrators, or other users view the content. This can expose browser-session data and permit victim-context account actions, defacement, or phishing. This issue is fixed in version 1.0.8.5."
                }
            ],
            "source": {
                "advisory": "GHSA-5cg7-phhv-4qjr",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/givanz/Vvveb/security/advisories/GHSA-5cg7-phhv-4qjr",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-23T19:09:15.788977Z",
                                "id": "CVE-2026-54506",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-23T19:09:21.053Z"
                }
            }
        ]
    }
}