{"id":"CVE-2026-55154","title":"EspoCRM is an open source customer relationship management application","summary":"EspoCRM is an open source customer relationship management application. Prior to 9.3.9, application/Espo/Tools/Export/Format/Csv/Processor.php, application/Espo/Tools/Export/Format/Xlsx/OpenSpoutProcessor.php, and application/Espo/Tools/…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-1236"],"vendor":"espocrm","product":"espocrm","affected":["espocrm < 9.3.9"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T15:17:35.743","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55154","references":[{"url":"https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead","label":"security-advisories@github.com"},{"url":"https://github.com/espocrm/espocrm/releases/tag/9.3.9","label":"security-advisories@github.com"},{"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-15T15:09:08.428Z","slug":"CVE-2026-55154","body":"## Overview\n\nEspoCRM is an open source customer relationship management application. Prior to 9.3.9, application/Espo/Tools/Export/Format/Csv/Processor.php, application/Espo/Tools/Export/Format/Xlsx/OpenSpoutProcessor.php, and application/Espo/Tools/Export/Format/Xlsx/PhpSpreadsheetProcessor.php inspect only the first byte in sanitizeCellValue(). An authenticated low-privileged user can store a free-text value whose formula trigger is preceded by whitespace or a control character, causing CSV or XLSX export to omit the leading single-quote formula-neutralization prefix. When a privileged user opens the exported file and accepts applicable spreadsheet security prompts, spreadsheet software can ignore the whitespace or control-character prefix and evaluate the cell as a formula, permitting outbound data disclosure and, on legacy configurations with DDE enabled, command execution. This issue is fixed in version 9.3.9.\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":[]}