{"id":"CVE-2026-121509","title":"Headless CMS Plugin REST API post get_required_post_data information disclosure","summary":"A security flaw has been discovered in Headless CMS Plugin up to 2.0.4 on WordPress. This affects the function get_required_post_data of the file /wp-json/rae/v1/post of the component REST API. The manipulation of the argument post_id/po…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C","cvssSource":"cna","cwe":["CWE-200","CWE-284"],"product":"Headless CMS Plugin","affected":["headless_cms_plugin 2.0.0","headless_cms_plugin 2.0.1","headless_cms_plugin 2.0.2","headless_cms_plugin 2.0.3","headless_cms_plugin 2.0.4"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-03T22:38:28.963409Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T22:39:30.867Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121509","references":[{"url":"https://vuldb.com/vuln/430285","label":"VDB-430285 | Headless CMS Plugin REST API post get_required_post_data information disclosure"},{"url":"https://vuldb.com/vuln/430285/cti","label":"VDB-430285 | CTI Indicators (IOB, IOC, TTP, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-121509","label":"CVE-2026-121509 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1019400","label":"Submit #1019400 | Imran Sayed Headless CMS 2.0.4 Exposure of Sensitive Information to an Unauthorized Actor"},{"url":"https://app.notion.com/p/Unauthenticated-disclosure-of-draft-private-and-future-post-contentimranhsayed-headless-cms-2-0-4-3f384f1ea6a48057bb67ed0dd89f4157?source=copy_link"}],"tags":["cve.org","exploit-available"],"epss":0.00377,"epssPercentile":0.31857,"ingestedAt":"2026-11-05T20:33:06.600Z","slug":"CVE-2026-121509","body":"## Overview\n\nA security flaw has been discovered in Headless CMS Plugin up to 2.0.4 on WordPress. This affects the function get_required_post_data of the file /wp-json/rae/v1/post of the component REST API. The manipulation of the argument post_id/post_slug results in information disclosure. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.\n\n## Affected\n\n- `headless_cms_plugin 2.0.0`\n- `headless_cms_plugin 2.0.1`\n- `headless_cms_plugin 2.0.2`\n- `headless_cms_plugin 2.0.3`\n- `headless_cms_plugin 2.0.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}