{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3129",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-02-24T16:38:54.193Z",
        "datePublished": "2026-08-28T03:39:35.416Z",
        "dateUpdated": "2026-08-28T03:39:35.416Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-08-28T03:39:35.416Z"
            },
            "affected": [
                {
                    "vendor": "litespeedtech",
                    "product": "LiteSpeed Cache",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "7.7",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted `<img>` tag attributes in all versions up to, and including, 7.7. This is due to a flawed regular expression that is used to strip `width` and `height` attributes from images when the \"Lazy Load Images\" and \"Add Missing Sizes\" features are enabled. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that execute whenever a user accesses an injected page."
                }
            ],
            "title": "LiteSpeed Cache <= 7.7 - Authenticated (Author+) Stored Cross-Site Scripting via img Tag Attributes",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c107674d-173f-49cf-b329-e7bffaee841d?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/media.cls.php#L761"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset/3473912/"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                            "cweId": "CWE-79",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
                        "baseScore": 6.4,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "stealthcopter"
                }
            ],
            "timeline": [
                {
                    "time": "2026-08-27T00:00:00.000Z",
                    "lang": "en",
                    "value": "Discovered"
                },
                {
                    "time": "2026-02-24T16:56:12.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-08-27T15:15:48.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        }
    }
}