Description
YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki vulnerable to remote code execution. An arbitrary file write can be used to write a file with a PHP extension, which then can be browsed to in order to execute arbitrary code on the server, resulting in a full compromise of the server. This could potentially be performed unwittingly by a user. This issue has been patched in version 4.5.4.
Scores
CVSS v3
9.8
EPSS
0.0397
EPSS Percentile
88.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-116
Status
published
Products (2)
yeswiki/yeswiki
< 4.5.4
yeswiki/yeswiki
0 - 4.5.4Packagist
Published
Apr 29, 2025
Tracked Since
Feb 18, 2026