{"id":"CVE-2026-107887","title":"Advanced Twenty Seventeen <= 1.3.1 - Subscriber+ Site Theme Switch via ats_create_child_theme","summary":"The Advanced Twenty Seventeen WordPress plugin through 1.3.1 does not perform any capability or nonce check on the action that creates and activates its bundled child , allowing any authenticated user such as a subscriber to switch the s…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cvssSource":"adp","cwe":["CWE-862","CWE-352"],"product":"Advanced Twenty Seventeen","affected":["advanced_twenty_seventeen <= 1.3.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-24T14:35:42.694961Z"},"published":"2026-10-24","updated":"2026-10-24","sourceUpdated":"2026-10-24T14:36:55.557Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107887","references":[{"url":"https://wpscan.com/vulnerability/e252c7ee-368d-4bfb-a964-06804747c162/"}],"tags":["cve.org"],"epss":0.00142,"epssPercentile":0.03443,"ingestedAt":"2026-10-24T06:53:46.606Z","slug":"CVE-2026-107887","body":"## Overview\n\nThe Advanced Twenty Seventeen WordPress plugin through 1.3.1 does not perform any capability or nonce check on the action that creates and activates its bundled child , allowing any authenticated user such as a subscriber to switch the site's active  site-wide, and allowing the same action to be triggered against any logged-in user including an administrator via CSRF.\n\n## Affected\n\n- `advanced_twenty_seventeen <= 1.3.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228780,"id":"CVE-2026-107887","ts":1792854067944,"field":"cvss","old":null,"new":"5.4"},{"seq":228779,"id":"CVE-2026-107887","ts":1792854067944,"field":"severity","old":"none","new":"medium"}]}