EUVD-2026-67235
GHSA-jgch-2jr2-87vj
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network vector with no privileges or interaction required; integrity High from arbitrary file write; availability Low from potential document corruption; scope unchanged in base case.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
Dolibarr 9.0.0 through 23.0.4 saves inbound email attachments under the name supplied in the message's MIME headers without reducing it to a safe basename. The global saveAttachment() in htdocs/emailcollector/lib/emailcollector.lib.php builds $filepath = $path . $filename . '.' . $ext and hands it to file_put_contents(), and the private saveAttachment() in htdocs/emailcollector/class/emailcollector.class.php writes to $destdir.'/'.$filename; the name reaches both from the attachment's own getName() or getFilename() value by way of the record-join, create-ticket and create-project operations. A traversal sequence in the filename therefore survives intact, so any sender who can email a mailbox that an EmailCollector monitors, which is the module's ordinary use for a support or ticket inbox, can place attacker-controlled content outside the per-object attachment directory without holding a Dolibarr account. Under the hardened layout Dolibarr's SECURITY.md requires, with htdocs read-only, the write is confined to the documents tree and corrupts or forges other objects' documents; where htdocs is writable the same primitive reaches a web-executable path. Version 24.0.0 applies dol_sanitizePathName() and dol_sanitizeFileName() before the write.
AnalysisAI
Path traversal via unsanitized MIME attachment filenames in Dolibarr's EmailCollector module allows any email sender to write attacker-controlled files outside the intended attachment directory, affecting versions 9.0.0 through 23.0.4. Because the EmailCollector is designed to ingest mail from unauthenticated external senders - such as a support or ticket inbox - no Dolibarr account is required to exploit this flaw. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The EmailCollector module must be enabled and configured with at least one active collector pointing to a real mailbox - this is the module's ordinary operational mode for support or ticket inboxes, so it is not a non-default or unusual configuration. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.8 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L) accurately reflects the network-reachable, zero-privilege, low-complexity nature of this flaw: any party who can send email to a monitored mailbox - including anonymous internet senders - can trigger the write. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who knows or discovers that a target organization uses Dolibarr's EmailCollector to ingest support requests sends a crafted email to the monitored inbox with an attachment whose MIME filename contains a path traversal sequence, for example '../../htdocs/shell.php'. When EmailCollector processes the message, the unsanitized filename is concatenated into the write path, and file_put_contents() deposits the attacker's PHP content into htdocs/shell.php. … |
| Remediation | The primary remediation is upgrading to Dolibarr version 24.0.0 or later, which applies dol_sanitizePathName() and dol_sanitizeFileName() to all attachment-write paths in the EmailCollector module; the upstream patch is at https://github.com/Dolibarr/dolibarr/commit/264a44defb5e438689c75679617f6edc4c038abc. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Dolibarr deployments to identify instances running versions 9.0.0-23.0.4 with the EmailCollector module enabled. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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