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Findings

CVE-2026-3577

The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias ( parameter) in the AJAX action in all versions up t…

Published Mar 21, 2026 · updated Jun 17, 2026

The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias ( parameter) in the AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output escaping. While strips HTML tags on save, it does not encode double quotes. The backup titles are output in HTML attribute contexts without . 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.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Mar 21, 2026 · NIST NVD

    Detected

    The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias ( parameter) in the AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output escaping. While strips HTML tags on save, it does not encode double quotes. The backup titles are output in HTML attribute contexts without . This mak

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias ( parameter) in the AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output escaping. While strips HTML tags on save, it does not encode double quotes. The backup titles are output in HTML attribute contexts without . This mak

Sources

  • CVE.orgVulnerability recordCVE-2026-3577

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-3577

    The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias ( parameter) in the AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output e

    nvd.nist.gov

References