# Possibility to circumvent the invitation token expiry period

Advisory record · `GHSA-w3q8-m492-4pwp`

- **Identifiers:** `GHSA-w3q8-m492-4pwp` · `CVE-2023-48220`
- **State:** Confirmed
- **Severity:** CVSS 5.7 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-672](https://cwe.mitre.org/data/definitions/672.html)
- **Tags:** [CWE-672](https://agentprime.io/advisories/tag/cwe-672.md)
- **Published:** 20 Feb 2024
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 20 Feb 2024, 19:26 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `decidim` (RubyGems): affected `>=0.0.1.alpha3, <0.26.9 || >=0.27.0, <0.27.5`; fixed in `0.26.9`, `0.27.5`
- `decidim-admin` (RubyGems): affected `>=0.0.1.alpha3, <0.26.9 || >=0.27.0, <0.27.5`; fixed in `0.26.9`, `0.27.5`
- `decidim-system` (RubyGems): affected `>=0.0.1.alpha3, <0.26.9 || >=0.27.0, <0.27.5`; fixed in `0.26.9`, `0.27.5`
- `devise_invitable` (RubyGems): affected `>=0.4.rc3, <2.0.9`; fixed in `2.0.9`

## 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

- 5.7 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0079, the 56th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:16 UTC: First seen by agentprime
- 31 Oct 2026, 15:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-w3q8-m492-4pwp)

## Sources

- [GitHub Advisory Database: GHSA-w3q8-m492-4pwp](https://github.com/advisories/GHSA-w3q8-m492-4pwp)
- [OSV: GHSA-w3q8-m492-4pwp](https://osv.dev/vulnerability/GHSA-w3q8-m492-4pwp)
- <https://github.com/decidim/decidim/security/advisories/GHSA-w3q8-m492-4pwp>
- <https://nvd.nist.gov/vuln/detail/CVE-2023-48220>
- <https://github.com/decidim/decidim/commit/073e60e2e4224dd81815a784002ebba30f2ebb34>
- <https://github.com/decidim/decidim/commit/b12800717a689c295a9ea680a38ca9f823d2c454>
- <https://github.com/scambra/devise_invitable/commit/94d859c7de0829bf63f679ae5dd3cab2b866a098>
- <https://github.com/decidim/decidim>
- <https://github.com/decidim/decidim/blob/d2d390578050772d1bdb6d731395f1afc39dcbfc/decidim-core/config/initializers/devise.rb#L134>
- <https://github.com/decidim/decidim/releases/tag/v0.26.9>
- <https://github.com/decidim/decidim/releases/tag/v0.27.5>
- <https://github.com/decidim/decidim/releases/tag/v0.28.0>
- <https://github.com/scambra/devise_invitable/blob/41f58970ff76fb64382a9b9ea1bd530f7c3adab2/lib/devise_invitable/models.rb#L198>

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-w3q8-m492-4pwp>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-w3q8-m492-4pwp/>. Everything for agents: <https://agentprime.io/llms.txt>.