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Fencer Intel
medium 6.8

CVE-2011-4449 json

actions/files/files.php in WikkaWiki 1.3.1 and 1.3.2, when INTRANET_MODE is enabled, supports file uploads for file extensions that are typ…

published 2012-09-05 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4378

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
2
Exploit-DB

Summary

actions/files/files.php in WikkaWiki 1.3.1 and 1.3.2, when INTRANET_MODE is enabled, supports file uploads for file extensions that are typically absent from an Apache HTTP Server TypesConfig file, which makes it easier for remote attackers to execute arbitrary PHP code by placing this code in a file whose name has multiple extensions, as demonstrated by a (1) .mm or (2) .vpp file.

Patch / fix

Timeline

  1. First public exploit (EDB-18177)
  2. Published

Exploit prediction

4.14% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-18865 WikkaWiki 1.3.2 - Spam Logging PHP Injection (Metasploit) webapps, 2012-05-12
  • EDB-18177 WikkaWiki 1.3.2 - Multiple Vulnerabilities webapps, 2011-11-30
  • wush.net http://wush.net/trac/wikka/changeset/1822 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

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.