Arbitrary file write via unsanitized export filename
Published May 8, 2023 · Updated Jan 29, 2025
Path traversal in Pimcore before 10.5.18 allows remote authenticated users to create arbitrary files or append data to existing files. CustomReportController's createCsvAction joins the unvalidated exportFile request value to the system temporary directory and opens the resulting path in append mode without reducing it to a basename or enforcing a CSV extension. Access requires a user with the reports permission; combining the file write with controllable report data permits a web shell and PHP execution as the web server.
Summary
What happened
Path traversal in Pimcore before 10.5.18 allows remote authenticated users to create arbitrary files or append data to existing files. CustomReportController's createCsvAction joins the unvalidated exportFile request value to the system temporary directory and opens the resulting path in append mode without reducing it to a basename or enforcing a CSV extension. Access requires a user with the reports permission; combining the file write with controllable report data permits a web shell and PHP execution as the web server.
The record
- CVE
- CVE-2023-30855
- Published
- May 8, 2023
- Updated
- Jan 29, 2025
- Vendor
- Pimcore
- Product
- Pimcore
- Classifications
- CWE-22, T1505.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 8, 2023CVE publishedPublication date reported by the CVE source.
- Jan 29, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 10.5.18
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo