Improper Privilege Management in devise_masquerade

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.013, the 69th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 8 Dec 2021. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-25f5-gc4h-hc22
• OSV: GHSA-25f5-gc4h-hc22
• nvd.nist.gov/vuln/detail/CVE-2021-28680
• github.com/oivoodoo/devise_masquerade/issues/83
• github.com/oivoodoo/devise_masquerade/pull/76
• github.com/oivoodoo/devise_masquerade
• github.com/oivoodoo/devise_masquerade/releases/tag/v1.3.1
• labanskoller.se/blog/2021/03/23/the-devise-extension-that-peeled-off-one-layer-of-the-security-onion-cve-2021-28680

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.