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CVE-2009-4978

26
FAUCET Score

CVE-2009-4978 is a directory traversal vulnerability in MyBackup 1.4.0, specifically within the down.php script. This flaw allows unauthenticated remote attackers to read arbitrary files on the affected system by manipulating the filename parameter with dot-dot-slash sequences. Rated with a CVSS score of 5.0, this vulnerability has a low attack complexity and can lead to information disclosure, but does not impact integrity or availability. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry (EDB-9365) confirms the existence of public exploit code, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.0CPE matchmatch criteria
cpe:2.3:a:tufat:mybackup:1.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.92%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-9365 · Aug 5, 2009
This CVE's current EPSS score of 0.0292 is in the 80th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/36106
Vendor Advisory
exploit-db.com / exploits/9365
vupen.com / english/advisories/2009/2165
Vendor Advisory