{"id":"CVE-2026-108647","title":"JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to create validation rules through the SysCheckRuleController importExcel handler","summary":"JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to create validation rules through the SysCheckRuleController importExcel handler. Attackers can upload a crafted Excel…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-862"],"published":"2026-10-10","updated":"2026-10-13","sourceUpdated":"2026-10-13T20:42:49.903","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108647","references":[{"url":"https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_c084_checkrule_import_xlsx.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysCheckRuleController.java#L192-L208","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-checkrule-importexcel","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00262,"epssPercentile":0.17923,"ingestedAt":"2026-10-10T22:34:13.263Z","vendor":"jeecgboot","product":"JeecgBoot","affected":["JeecgBoot <= 3.9.5"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-18T11:43:24.526752Z"},"slug":"CVE-2026-108647","body":"## Overview\n\nJeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to create validation rules through the SysCheckRuleController importExcel handler. Attackers can upload a crafted Excel workbook to bypass the system:checkRule:add permission and bulk-create system-wide encoding validation rules with arbitrary regular expression patterns.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":224386,"id":"CVE-2026-108647","ts":1792327377180,"field":"exploit_available","old":"false","new":"true"}]}