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High 7.5Published Sep 29, 2026

CVE-2026-100241Private change tags exposed to anonymous users via revision-tags-change events

Updated under an hour ago ()

Does this affect you?

It affects Wikimedia Foundation Mediawiki - EventBus Extension. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.31%, higher than 22% of scored CVEs.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation. This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.

CVSS
7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-200
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
0.31% (percentile 22)
Assigned by
wikimedia-foundation
NVD analysis
Awaiting Analysis
Record last updated
Sep 30, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Wikimedia Foundation Mediawiki - EventBus Extension
wikimedia_foundation:mediawiki_eventbus_extension (from the name)
1.47.0-alpha
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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