# Mattermost password hash disclosure vulnerability

Advisory record · `GHSA-r67m-mf7v-qp7j`

- **Identifiers:** `GHSA-r67m-mf7v-qp7j` · `CVE-2023-5968`
- **State:** Confirmed
- **Severity:** CVSS 4.9 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-116](https://cwe.mitre.org/data/definitions/116.html) · [CWE-200](https://cwe.mitre.org/data/definitions/200.html)
- **Tags:** [Information disclosure](https://agentprime.io/advisories/tag/info-disclosure.md) · [CWE-116](https://agentprime.io/advisories/tag/cwe-116.md)
- **Published:** 6 Nov 2023
- **Updated:** 22 Jul 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 6 Nov 2023, 18:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/mattermost/mattermost-server/v6` (Go): affected `>=5.4.0-rc1, <7.8.12 || <5.3.2-0.20230825233148-f787fd63368a`; fixed in `7.8.12`, `5.3.2-0.20230825233148-f787fd63368a`
- `github.com/mattermost/mattermost/server/v8` (Go): affected `>=8.0.0, <8.0.4 || >=8.1.0, <8.1.3 || >=9.0.0, <9.0.1 || <8.0.0-20230825233148-f787fd63368a`; fixed in `8.0.4`, `8.1.3`, `9.0.1`, `8.0.0-20230825233148-f787fd63368a`
- `github.com/mattermost/mattermost-server/v5` (Go): affected `<5.3.2-0.20230825233148-f787fd63368a`; fixed in `5.3.2-0.20230825233148-f787fd63368a`
- `github.com/mattermost/mattermost-server` (Go): affected `<5.3.2-0.20230825233148-f787fd63368a`; fixed in `5.3.2-0.20230825233148-f787fd63368a`

## 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

- 4.9 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`, from CNA (Mattermost)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0062, the 49th 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 6 Nov 2023. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-r67m-mf7v-qp7j](https://github.com/advisories/GHSA-r67m-mf7v-qp7j)
- [OSV: GHSA-r67m-mf7v-qp7j](https://osv.dev/vulnerability/GHSA-r67m-mf7v-qp7j)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-5968>
- <https://github.com/mattermost/mattermost/pull/24362>
- <https://github.com/mattermost/mattermost/pull/24566>
- <https://github.com/mattermost/mattermost/commit/698f4a97da564e2c1f2bf1fbd01755cefa3b7881>
- <https://github.com/mattermost/mattermost>
- <https://mattermost.com/security-updates>

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-r67m-mf7v-qp7j>, 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-r67m-mf7v-qp7j/>. Everything for agents: <https://agentprime.io/llms.txt>.