Directory traversal vulnerability in down.php in MyBackup 1.4.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the f…

published 2010-08-25 16y ago modified 2026-06-16 4mo ago also EUVD-2009-4940

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.9%; EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits: 1; Exploit-DB

Directory traversal vulnerability in down.php in MyBackup 1.4.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the filename parameter.

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Timeline

2009-08-05 First public exploit (EDB-9365)
2010-08-25 Published

Exploit prediction

2.92% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-9365 mybackup 1.4.0 - File Download / Remote File Inclusion webapps, 2009-08-05

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

exploit-db.com /exploits/9365
exploit
vupen.com /english/advisories/2009/2165
vdb-entry, vendor-advisory
secunia.com /advisories/36106
third-party-advisory, vendor-advisory

Sources

CVE List CVE-2009-4978
NVD CVE-2009-4978

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