GHSA-rw9x-pxqx-q789 CVE-2026-27939
Statamic allows Authenticated Control Panel users to escalate privileges via elevated session bypass
- Severity
- 8.8 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.43%
- Chance of exploitation in the next 30 days. Higher than 36.87% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-287 Improper Authentication
- Fix
6.4.0- Upgrade statamic/cms to this version or later
Description
Impact
Authenticated Control Panel users may under certain conditions obtain elevated privileges without completing the intended verification step. This can allow access to sensitive operations and, depending on the user’s existing permissions, may lead to privilege escalation.
Patches
This has been fixed in 6.4.0.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| statamic/cms | >= 6.0.0, < 6.4.0 |
6.4.0 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
statamic/cms Packagist → 6.4.0
- composer
composer require statamic/cms:^6.4.0
Severity breakdown
CVSS 3.1 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it
- Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-vx89-p3j7-8xqc Statamic: Stored Cross-Site Scripting in Automagic Form Notification Email Template | Medium | Also affects statamic/cms |
| GHSA-qhr7-v3xp-vw9m Statamic: Missing file upload validation on frontend forms allows uploading disallowed file types | Medium | Also affects statamic/cms |
| GHSA-qh8c-7588-qfrv Statamic: Missing authorization on navigation endpoint allows disclosure of restricted entries | Medium | Also affects statamic/cms |
| GHSA-j2vp-f2pv-5rj4 Statamic: Unsafe method invocation via Antlers template resolution allows data destruction | Medium | Also affects statamic/cms |
| GHSA-93qh-5269-9wcf Statamic: Account takeover via OAuth email matching without email-verification check | High | Also affects statamic/cms |
| GHSA-225x-3jhx-wh4q Statamic: Missing authorization on Control Panel endpoint allows disclosure of user existence | Medium | Also affects statamic/cms |
| GHSA-jppw-r5j3-xf7x Statamic CMS exposes two-factor recovery codes through dynamic Antlers rendering | Medium | Also affects statamic/cms |
| GHSA-7mqq-4v55-88gh Statamic CMS's incorrect authorization lets view-only users submit Live Preview content reserved for editors | Low | Also affects statamic/cms |
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