GHSA-prp4-2f49-fcgp · Severity: high · Ecosystem: npm — Actual has Privilege Escalation via 'change-password' Endpoint on OpenID-Migrated Servers
Actual is a local-first personal finance tool. Prior to version 26.4.0, any authenticated user (including `BASIC` role) can escalate to `ADMIN` on servers migrated from password authentication to OpenID Connect. Three weaknesses combine: `POST /account/change-password` has no authorization check, allowing any session to overwrite the password hash; the inactive password `auth` row is never removed on migration; and the login endpoint accepts a client-supplied `loginMethod` that bypasses the server's active auth configuration. Together these allow an attacker to set a known password and authenticate as the anonymous admin account created during the multiuser migration. The three weaknesses form a single, sequential exploit chain — none produces privilege escalation on its own. Missing authorization on POST /change-password allows overwriting a password hash, but only matters if there is an orphaned row to target. Orphaned password row persisting after migration provides the target row, but is harmless without the ability to authenticate using it. Client-controlled loginMethod: "password" allows forcing password-based auth, but is useless without a known hash established by step 1. All three must be chained in sequence to achieve the impact. No single weakness independently results in privilege escalation. The single root cause is the missing authorization check on /change-password; the other two are preconditions that make it exploitable. Version 26.4.0 contains a fix.
Conclusion & alert: CVE-2026-33318 is rated Exploit Available (54.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.04%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-03 | 0.07% | 0.04% | -0.03% |
| 2 | 2026-04-24 | — | 0.07% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
GHSA-prp4-2f49-fcgp · Severity: high · Ecosystem: npm — Actual has Privilege Escalation via 'change-password' Endpoint on OpenID-Migrated Servers
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| actualbudget | actual | < 26.4.0 | cpe:2.3:a:actualbudget:actual:*:*:*:*:*:node.js:*:* |
| URL | Tags |
|---|---|
| https://actualbudget.org/blog/release-26.4.0 | Release Notes |
| https://github.com/actualbudget/actual/security/advisories/GHSA-prp4-2f49-fcgp | Exploit Mitigation Vendor Advisory |