Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon before 4.4.6, 4.3.14, and 4.2.27, when an administrator resets a user account's password via the command-line interface using `bin/tootctl accounts modify --reset-password`, active sessions and access tokens for that account are not revoked. This allows an attacker with access to a previously compromised session or token to continue using the account after the password has been reset. This issue has been patched in versions 4.2.27, 4.3.14, and 4.4.6. No known workarounds exist.
Conclusion & alert: CVE-2025-62174 is rated Low Risk (17.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.19%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.03% | 0.19% | +0.16% |
| 2 | 2026-03-11 | 0.06% | 0.03% | -0.03% |
| 3 | 2026-02-12 | — | 0.06% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 3.5 | 3.1 | LOW |
|
2.1 | 1.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| joinmastodon | mastodon | < 4.2.27 | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* |
| joinmastodon | mastodon | >= 4.3.0, < 4.3.14 | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* |
| joinmastodon | mastodon | >= 4.4.0, < 4.4.6 | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* |