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Fencer Intel
medium 6.8

CVE-2011-4106 json

TimThumb (timthumb.php) before 2.0 does not validate the entire source with the domain white list, which allows remote attackers to upload…

published 2013-10-26 13 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4055

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
23.3%
EPSS 23.3% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

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.

Patch / fix

Timeline

  1. First public exploit (EDB-17602)
  2. Published

Exploit prediction

23.34% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-17872 Multiple WordPress Plugins - 'timthumb.php' File Upload webapps, 2011-09-19
  • EDB-17602 WordPress Plugin TimThumb 1.32 - Remote Code Execution webapps, 2011-08-03
  • code.google.com http://code.google.com/p/timthumb/issues/detail?id=212 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.