CVE-2026-5266

LOW

2.3

CVSS Score

Published: May 11, 2026 at 04:55 PM UTC

Updated: October 26, 2026 at 12:10 AM UTC

1 product affected across 1 vendorEcho

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Severity

LOW2.3

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Echo. This vulnerability is associated with program files includes/Api/ApiEchoNotifications.Php. This issue affects Echo: from * before 1.43.7, 1.44.4, 1.45.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Echo · Wikimedia

90%

v < 1.43.7, 1.44.4, 1.45.2

Affected range stops below 1.43.7, 1.44.4, 1.45.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord

https://phabricator.wikimedia.org/T420154

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.3LOWwikimedia-foundation

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-200

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