{"id":"CVE-2026-55154","published":"2026-10-15T15:17:35.620","lastModified":"2026-10-16T18:17:58.457","description":"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/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.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-1236"],"vendors":[],"products":[],"references":[{"url":"https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead","tags":[]},{"url":"https://github.com/espocrm/espocrm/releases/tag/9.3.9","tags":[]},{"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x","tags":[]}],"exploitRefs":[{"url":"https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead","tags":[]},{"url":"https://github.com/espocrm/espocrm/releases/tag/9.3.9","tags":[]},{"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x","tags":[]}],"hasPoc":true,"ai":null}