Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/349930?format=api",
    "vulnerability_id": "VCID-nb5k-3aqq-t7bk",
    "summary": "The Yoast SEO Premium plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions 25.7 to 25.9 due to a flawed regex used to remove an attribute in post content, which can be abused to inject arbitrary HTML attributes, including JavaScript event handlers. This vulnerability allows a user with Contributor access or higher to create a post containing a malicious JavaScript payload.",
    "aliases": [
        {
            "alias": "CVE-2025-11241"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-11241",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.0001",
                    "scoring_system": "epss",
                    "scoring_elements": "0.01143",
                    "published_at": "2026-06-07T12:55:00Z"
                },
                {
                    "value": "0.0001",
                    "scoring_system": "epss",
                    "scoring_elements": "0.01142",
                    "published_at": "2026-06-05T12:55:00Z"
                },
                {
                    "value": "0.00011",
                    "scoring_system": "epss",
                    "scoring_elements": "0.01332",
                    "published_at": "2026-06-08T12:55:00Z"
                },
                {
                    "value": "0.00011",
                    "scoring_system": "epss",
                    "scoring_elements": "0.01331",
                    "published_at": "2026-06-09T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-11241"
        },
        {
            "reference_url": "https://developer.yoast.com/changelog/yoast-seo-premium/26.0/",
            "reference_id": "26.0",
            "reference_type": "",
            "scores": [
                {
                    "value": "6.4",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-03T15:49:46Z/"
                }
            ],
            "url": "https://developer.yoast.com/changelog/yoast-seo-premium/26.0/"
        },
        {
            "reference_url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a6e3645d-ed1b-4c51-a463-c2691cb7168d?source=cve",
            "reference_id": "a6e3645d-ed1b-4c51-a463-c2691cb7168d?source=cve",
            "reference_type": "",
            "scores": [
                {
                    "value": "6.4",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-03T15:49:46Z/"
                }
            ],
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a6e3645d-ed1b-4c51-a463-c2691cb7168d?source=cve"
        },
        {
            "reference_url": "https://sec.stealthcopter.com/regexss/",
            "reference_id": "regexss",
            "reference_type": "",
            "scores": [
                {
                    "value": "6.4",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-03T15:49:46Z/"
                }
            ],
            "url": "https://sec.stealthcopter.com/regexss/"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 80,
            "name": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
            "description": "The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as <, >, and & that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages."
        }
    ],
    "exploits": [],
    "severity_range_score": "6.4 - 6.4",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-nb5k-3aqq-t7bk"
}