CVE-2013-4570

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-05-12 · updated 2026-06-16

Description

The zend_inline_hash_func function in php-luasandbox in the Scribuntu extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to converting Lua data structures to PHP, as demonstrated by passing { [{}] = 1 } to a module function.

Affected products

Wikimedia Foundation MediaWiki: through 1.19.9; 1.22.0, 1.19, 1.19-beta_1, 1.19-beta_2, 1.19.0, 1.19.1 (+11)

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html
https://bugzilla.wikimedia.org/show_bug.cgi?id=54527
http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html
https://bugzilla.wikimedia.org/show_bug.cgi?id=54527

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