What is CVE-2018-11248?

CVE-2018-11248 is a critical-severity vulnerability in Liulishuo Filedownloader, classified under Path Traversal. CVSS score: 9.8/10. Published 2018-05-18.

How severe is CVE-2018-11248?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-11248 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Liulishuo Filedownloader

CVE-2018-11248

util/FileDownloadUtils.java in FileDownloader 1.7.3 does not check an attachment's name. If an attacker places "../" in the file name, the file can be stored in an unintended directory because of Directory Traversal.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.016 (73.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Liulishuo Filedownloader — versions 1.7.3
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-11248?: CVE-2018-11248 is a critical-severity vulnerability in Liulishuo Filedownloader, classified under Path Traversal. CVSS score: 9.8/10. Published 2018-05-18.
How severe is CVE-2018-11248?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-11248 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.