CVE-2026-3577

{"id": "CVE-2026-3577", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.3}]}, "published": "2026-03-21T00:16:28.917", "references": [{"url": "https://plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/functions.php#L626", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/kbd_cron.php#L505", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/functions.php#L626", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/kbd_cron.php#L505", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3481587%40keep-backup-daily&new=3481587%40keep-backup-daily&sfp_email=&sfph_mail=", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/18a4fa4b-5c99-4347-8b34-e49f7e0972be?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias (`val` parameter) in the `update_kbd_bkup_alias` AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output escaping. While `sanitize_text_field()` strips HTML tags on save, it does not encode double quotes. The backup titles are output in HTML attribute contexts without `esc_attr()`. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts via attribute injection that will execute whenever another administrator views the backup list page."}], "lastModified": "2026-03-23T14:32:02.800", "sourceIdentifier": "security@wordfence.com"}