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CVE-2026-40521

FrontAccounting < 2.4.20 Path Traversal RCE via attachment upload PUBLISHED

Description (CNA)

FrontAccounting before 2.4.20 contains a path traversal vulnerability in the attachment upload handler that allows authenticated attackers to execute arbitrary code by uploading files with traversal sequences in the unique_name parameter. Attackers can supply path traversal sequences ../../../shell.php to write files outside the intended attachments directory into the web root, and by uploading PHP files without extension validation, achieve remote code execution as the web server user.

Affected (CNA)

Vendor / productVersions
FrontAccounting / FrontAccountingaffected 0 before 2.4.20; unaffected 701fea6848da4a02fb83d30f07a9c0473d6b7e33

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.