THREATPORT/VULNERABILITY/CVE-2009-0290
MEDIUM SEVERITY

CVE-2009-0290

Gnuboard vulnerability

CVSS
6.8
EPSS
3.3%
EPSS pct
87th
Exploited
No known
Directory traversal vulnerability in common.php in SIR GNUBoard 4.31.03 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the g4_path parameter. NOTE: in some environments, this can be leveraged for remote code execution via a data: URI or a UNC share pathname.
Affected vendor
Sir
Affected product
Gnuboard
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness type (CWE)
Published
2009-01-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2009-0290

  • Confirm whether Sir Gnuboard is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-0290.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0290

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0290 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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