{"id":"CVE-2026-15726","state":"PUBLISHED","title":"Serious Slider <= 1.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'theme' Shortcode Attribute","description":"The Serious Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'theme' Shortcode Attribute in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping. 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 an injected page.","publishedAt":"2026-08-16T04:24:56.120Z","updatedAt":"2026-08-17T16:06:09.900Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["cryout-creations Serious Slider"],"affected":[{"vendor":"cryout-creations","product":"Serious Slider","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.4.0","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/c8f45054-e6a4-403b-94eb-2dd2a4840c22?source=cve","https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L244","https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L55","https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L102","https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L111","https://plugins.trac.wordpress.org/changeset?reponame=&old=3640247%40cryout-serious-slider&new=3640247%40cryout-serious-slider"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15726.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15726","state":"PUBLISHED","datePublished":"2026-08-16T04:24:56.120Z","dateUpdated":"2026-08-17T16:06:09.900Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-07-14T13:31:09.062Z"},"containers":{"cna":{"title":"Serious Slider <= 1.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'theme' Shortcode Attribute","descriptions":[{"lang":"en","value":"The Serious Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'theme' Shortcode Attribute in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping. 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 an injected page."}],"affected":[{"vendor":"cryout-creations","product":"Serious Slider","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.4.0","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/c8f45054-e6a4-403b-94eb-2dd2a4840c22?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L244"},{"url":"https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L55"},{"url":"https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L102"},{"url":"https://plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.php#L111"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3640247%40cryout-serious-slider&new=3640247%40cryout-serious-slider"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-08-16T04:24:56.120Z"},"credits":[{"lang":"en","type":"finder","value":"Wordfence PRISM"}],"timeline":[{"time":"2026-08-15T16:22:52.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-17T14:14:01.832203Z","id":"CVE-2026-15726","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-17T16:06:09.900Z"}}]}}}