CVE-2026-5266 json
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Echo.
published 2026-05-11 5 mo ago modified 2026-10-26 14 d ago also EUVD-2026-29157
- cvss
- 2.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Wikimedia Foundation Echo 1.43.7, 1.44.4, 1.45.2
- mediawiki Debian 13 1:1.43.8+dfsg-1~deb13u1
- mediawiki Debian 14 1:1.43.8+dfsg-1
debian advisories DEBIAN-CVE-2026-5266
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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 |
Affected products
- Wikimedia Foundation Echo
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
Sources
- CVE List CVE-2026-5266
- NVD CVE-2026-5266
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