THREATPORT/VULNERABILITY/CVE-2011-4106
MEDIUM SEVERITY

CVE-2011-4106

Timthumb vulnerability

CVSS
6.8
EPSS
23.2%
EPSS pct
98th
Exploited
No known
TimThumb (timthumb.php) before 2.0 does not validate the entire source with the domain white list, which allows remote attackers to upload and execute arbitrary code via a URL containing a white-listed domain in the src parameter, then accessing it via a direct request to the file in the cache directory, as exploited in the wild in August 2011.
Affected vendor
Binarymoon
Affected product
Timthumb
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2013-10-26

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 23.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2011-4106

  • Confirm whether Binarymoon Timthumb is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-4106.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-4106

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-4106 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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