Arbitrary Code Execution Affecting phpbb package, versions [,2.0.11)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
85.91% (100th percentile)

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  • Snyk IDSNYK-UNMANAGED-PHPBB-2382587
  • published26 Jan 2022
  • disclosed12 Nov 2004
  • creditUnknown

Introduced: 12 Nov 2004

CVE-2004-1315  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade phpbb to version 2.0.11 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Execution viewtopic.php in phpBB 2.x before 2.0.11 improperly URL decodes the highlight parameter when extracting words and phrases to highlight, which allows remote attackers to execute arbitrary PHP code by double-encoding the highlight value so that special characters are inserted into the result, which is then processed by PHP exec, as exploited by the Santy.A worm.

CVSS Base Scores

version 3.1