{"id":"CVE-2026-55154","revision":"f679891d0ccf4a4c9e02fc1c270408eb","records":[{"revision":"f679891d0ccf4a4c9e02fc1c270408eb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55154","aliases":[],"title":"EspoCRM: CSV/Formula Injection sanitizer bypass via leading whitespace/control characters in export","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.","state":0,"publishedAt":"2026-10-15T14:49:15.584+00:00","modifiedAt":"2026-10-16T17:13:56.91+00:00","affected":[{"ecosystem":"Vendor product","name":"espocrm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"espocrm\",\n                    \"product\": \"espocrm\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 9.3.9\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x","https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead","https://github.com/espocrm/espocrm/releases/tag/9.3.9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55154","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55154","identifiers":["CVE-2026-55154"]},"retained":false,"historicalAffected":[]}],"coverage":[]}