CVE-2018-20483
lowpriority · track · 31EPSS 0.007 · 51 %ileEURUUSEPSS · scored 2026-10-28
set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 2.1–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
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references (37)
External citations — patches, advisories, analysis.
- http://git.savannah.gnu.org/cgit/wget.git/tree/NEWScnnvd
- http://www.gnu.orgcnnvd
- http://www.securityfocus.com/bid/106358cnnvd
- http://www.ubuntu.com/usn/usn-3943-1cnnvd
- https://access.redhat.com/errata/RHSA-2019:3701cnnvd
- https://access.redhat.com/security/cve/cve-2018-20483cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1662705cnnvd
- https://github.com/curl/curl/commit/98e6629154044e4ab1ee7cff8351c7ebcb131e88cnnvd
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