# Tinfoil Devise-two-factor does not "burn" a successfully validated one-time password (OTP)

Advisory record · `GHSA-x489-jjwm-52g7`

- **Identifiers:** `GHSA-x489-jjwm-52g7` · `CVE-2015-7225`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Published:** 28 Aug 2018
- **Updated:** 8 Dec 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 28 Aug 2018, 22:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `devise-two-factor` (RubyGems): affected `<2.0.0`; fixed in `2.0.0`

## 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

- 5.3 Medium, CVSS 3.0: `CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.021, the 81st percentile, on 10 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 28 Aug 2018. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-x489-jjwm-52g7](https://github.com/advisories/GHSA-x489-jjwm-52g7)
- [OSV: GHSA-x489-jjwm-52g7](https://osv.dev/vulnerability/GHSA-x489-jjwm-52g7)
- <https://nvd.nist.gov/vuln/detail/CVE-2015-7225>
- <https://github.com/tinfoil/devise-two-factor/issues/45#issuecomment-139335608>
- <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466>
- <https://github.com/advisories/GHSA-x489-jjwm-52g7>
- <https://github.com/rubysec/ruby-advisory-db/blob/master/gems/devise-two-factor/CVE-2015-7225.yml>
- <https://github.com/tinfoil/devise-two-factor>
- <https://github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.md>
- <https://web.archive.org/web/20210122192452/https://www.securityfocus.com/bid/76789>
- <http://www.openwall.com/lists/oss-security/2015/06/20/4>
- <http://www.openwall.com/lists/oss-security/2015/09/06/2>
- <http://www.openwall.com/lists/oss-security/2015/09/17/2>

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.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-x489-jjwm-52g7>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-x489-jjwm-52g7/>. Everything for agents: <https://agentprime.io/llms.txt>.