CVE-2026-39935

Tuesday, April 07, 2026

6.9

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

Summary

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.

Affected Software

Vendor	Product	Version Range	Status
The Wikimedia Foundation	Mediawiki - CampaignEvents Extension	`1.43`	affected
The Wikimedia Foundation	Mediawiki - CampaignEvents Extension	`1.44`	affected
The Wikimedia Foundation	Mediawiki - CampaignEvents Extension	`1.45`	affected
The Wikimedia Foundation	Mediawiki - CampaignEvents Extension	`0 < 1.43`	affected

Weaknesses

CWE-79: CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

ADP Enrichment

CISA ADP Vulnrichment

SSVC:
Exploitation: none
- Automatable: yes
- Technical Impact: partial

References

Feedback

Was this page helpful?

Glad to hear it! Please tell us how we can improve.

Sorry to hear that. Please tell us how we can improve.