GHSA-jm79-9pm4-vrw9

Decidim vulnerable to sensitive data disclosure

Source: GitHub Advisory Database (reviewed) High CVE-2023-34090

Packages

Ecosystem	Package	Affected	Fixed in
RubyGems	decidim	>= 0.27.0, < 0.27.3	0.27.3
RubyGems	decidim-meetings	>= 0.27.0, < 0.27.3	0.27.3

Details

As written in the advisory (Markdown source, shown as plain text).

Note: added the actual report as a [comment](https://github.com/decidim/decidim/security/advisories/GHSA-jm79-9pm4-vrw9#advisory-comment-81110). ### Summary Decidim, a platform for digital citizen participation, uses a third-party library named Ransack for filtering certain database collections (e.g., public meetings). By default, this library allows filtering on all data attributes and associations. This allows an unauthenticated remote attacker to exfiltrate non-public data from the underlying database of a Decidim instance (e.g., exfiltrating data from the user table). ### Impact This issue may lead to Sensitive Data Disclosure. ### Patches The problem was patched in [v0.27.3](https://github.com/decidim/decidim/releases/tag/v0.27.3). ### Workarounds Disable or unpublish all meetings components from your application.

References

External links from the advisory. They lead to third-party sites.