{"id":"CVE-2026-19855","title":"The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site execut…","summary":"The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site execut…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-74"],"product":"CleanTalk","affected":["CleanTalk < 6.87"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:17:02.250","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-19855","references":[{"url":"https://wpscan.com/vulnerability/c27f3657-261a-46cd-860c-0bdf5c849190/","label":"contact@wpscan.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-09T15:22:26.851558Z"},"epss":0.00183,"epssPercentile":0.06958,"ingestedAt":"2026-09-09T07:03:03.597Z","slug":"CVE-2026-19855","body":"## Overview\n\nThe CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site executed server-side and rendered to every subsequent visitor of the page.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}