OpenProject has stored XSS regression using attachments and script-src self_CVE-2026-23625

{
    "lastseen": "",
    "description": "OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject\u2019s roadmap view renders the \u201cRelated work packages\u201d list for each version. When a version contains work packages from a different project (e.g., a subproject), the helper link_to_work_package prepends package.project.to_s to the link and returns the entire string with .html_safe. Because project names are user-controlled and no escaping happens before calling html_safe, any HTML placed in a subproject name is injected verbatim into the page. The underlying issue is mitigated in versions 16.6.5 and 17.0.0 by setting a `X-Content-Type-Options: nosniff` header, which was in place until a refactoring move to Rails standard content-security policy, which did not properly apply this header in the new configuration since OpenProject 16.3.0. Those who cannot upgrade their installations should ensure that they add a X-Content-Type-Options: nosniff header in their proxying web application server.",
    "published": "2026-01-19T17:41:41.803Z",
    "modified": "2026-01-19T17:41:41.803Z",
    "type": "cve",
    "title": "OpenProject has stored XSS regression using attachments and script-src self",
    "source": "GitHub_M",
    "references": "https://github.com/opf/openproject/security/advisories/GHSA-cvpq-cc56-gwxx\nhttps://github.com/opf/openproject/releases/tag/v16.6.5\nhttps://github.com/opf/openproject/releases/tag/v17.0.0",
    "id": "CVE-2026-23625",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "opf openproject >= 16.3.0, < 16.6.5",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "openproject",
    "version": ">= 16.3.0, < 16.6.5",
    "vendor": "opf",
    "ai_description": "Stored cross-site scripting vulnerability in the Roadmap view",
    "ai_severity": "High",
    "ai_vendor": "OpenProject Foundation",
    "ai_product": "OpenProject",
    "ai_version": "16.3.0-16.6.4",
    "ai_score": 8.7
}