{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6397", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-04-15T20:19:43.983Z", "datePublished": "2026-05-20T01:25:46.486Z", "dateUpdated": "2026-05-20T17:18:35.975Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-05-20T01:25:46.486Z"}, "affected": [{"vendor": "cvmh", "product": "Sticky", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "2.5.6", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Sticky plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `cvmh-sticky` shortcode `readmoretext` attribute in versions up to and including 2.5.6. This is due to insufficient input sanitization and output escaping in the `cvmh_sticky_front_render()` function \u2014 the `readmoretext` attribute value is passed through `apply_filters()` and directly concatenated into the HTML output without any escaping function such as `esc_html()`. This makes it possible for authenticated attackers with Contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses a page containing the injected shortcode."}], "title": "Sticky <= 2.5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'readmoretext' Shortcode Attribute", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/135783c5-8175-4775-a013-f1e2bef04479?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/sticky/trunk/includes/functions.php#L118"}, {"url": "https://plugins.trac.wordpress.org/browser/sticky/tags/2.5.6/includes/functions.php#L118"}, {"url": "https://plugins.trac.wordpress.org/browser/sticky/trunk/includes/shortcode.php#L7"}, {"url": "https://plugins.trac.wordpress.org/browser/sticky/tags/2.5.6/includes/shortcode.php#L7"}], "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": "Djaidja Moundjid"}], "timeline": [{"time": "2026-05-19T12:04:07.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-20T17:18:25.618732Z", "id": "CVE-2026-6397", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-20T17:18:35.975Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Sticky plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `cvmh-sticky` shortcode `readmoretext` attribute in versions up to and including 2.5.6. This is due to insufficient input sanitization and output escaping in the `cvmh_sticky_front_render()` function \u2014 the `readmoretext` attribute value is passed through `apply_filters()` and directly concatenated into the HTML output without any escaping function such as `esc_html()`. This makes it possible for authenticated attackers with Contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses a page containing the injected shortcode."}], "id": "CVE-2026-6397", "lastModified": "2026-05-20T13:54:54.890", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-05-20T02:16:37.770", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/sticky/tags/2.5.6/includes/functions.php#L118"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/sticky/tags/2.5.6/includes/shortcode.php#L7"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/sticky/trunk/includes/functions.php#L118"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/sticky/trunk/includes/shortcode.php#L7"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/135783c5-8175-4775-a013-f1e2bef04479?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}