{"id":"CVE-2023-5706","aliases":["EUVD-2023-57993","GHSA-x72p-747c-h6vp"],"status":"published","title":"VK Blocks \u003c= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00635,"percentile":0.50753,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-11-22T15:33:18Z","modified":"2026-10-28T02:30:23Z","products":[{"vendor":"vektor-inc","product":"vk blocks"},{"vendor":"vektor-inc","product":"vk_blocks"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/05dd7c96-7880-44a8-a06f-037bc627fd8d?source=cve","tags":["x_transferred","Third Party Advisory","web"]},{"url":"https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L50","tags":["x_transferred","Patch","web"]},{"url":"https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L54","tags":["x_transferred","Patch","web"]},{"url":"https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L57","tags":["x_transferred","Patch","web"]},{"url":"https://plugins.trac.wordpress.org/changeset/2983202/vk-blocks/trunk/inc/vk-blocks/build/blocks/ancestor-page-list/index.php","tags":["x_transferred","Patch","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5706","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-x72p-747c-h6vp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5706.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-5706","title":"VK Blocks \u003c= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2023-11-22T15:33:18.579Z","modified":"2026-04-08T16:33:31.403Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:17.149492Z"}],"euvd":[{"id":"EUVD-2023-57993","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2023-11-22T15:33:18Z","modified":"2026-04-08T16:33:31Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:11.239745Z"}],"ghsa":[{"id":"GHSA-x72p-747c-h6vp","title":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ...","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2023-11-22T18:30:56Z","modified":"2023-12-10T05:05:22Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:55:10.314842Z"}],"nvd":[{"id":"CVE-2023-5706","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2023-11-22T16:15:14.167Z","modified":"2026-06-17T06:49:11.52Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-5706","title":"VK Blocks \u003c= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block","description":"The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","status":"published","published":"2023-11-22T15:33:18.579Z","modified":"2026-10-28T02:30:23.945535161Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:36.851042Z"}]}}