Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting (XSS). This issue was remediated only on the `master` branch.
References (2)
Core 2
Scores
CVSS v4
6.9
EPSS
0.0029
EPSS Percentile
20.7%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (7)
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
< 1.43
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.43
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.43.7
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.44
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.44.4
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.45
The Wikimedia Foundation/Mediawiki - CampaignEvents Extension
1.45.2
Published
Apr 07, 2026
Tracked Since
Apr 08, 2026