File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "\", "/"), which turns a POSIX filename such as ..\..\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.
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References
History
Wed, 15 Jul 2026 17:30:00 +0000
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ssvc
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Wed, 15 Jul 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "\", "/"), which turns a POSIX filename such as ..\..\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17. | |
| Title | File Browser: Archive builder turns backslash filenames into path traversal (zip-slip) | |
| Weaknesses | CWE-22 CWE-23 |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-15T16:32:21.438Z
Reserved: 2026-07-14T21:10:50.031Z
Link: CVE-2026-62843
Updated: 2026-07-15T16:25:36.567Z
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