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Vulnerabilities

Vulnerability · CVE-2026-22707

Strapi is an open source headless content management system.

Published May 14, 2026 · catalog updated Jun 17, 2026 · Strapi is an open

Check if you run it

No confirmed exploitation is on record for CVE-2026-22707. EPSS is 0.19%. Act only if a listed version of Strapi is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Strapi is an open).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
cpe strapi/strapi

Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions ( and ). The same restrictions were correctly enforced on the Admin Panel upload path. The upload plugin's security check was invoked in the admin upload controller but was missing from the Content API controller. The Content API handlers and (and the wrapper that dispatches to them) called the underlying upload service directly, bypassing both the magic-byte MIME detection and the configured allow/deny lists. An authenticated user with the Content API upload permission could therefore upload file types the administrator had explicitly disallowed, including HTML and SVG content. In deployments serving uploaded files from the same origin as the admin panel (default), an attacker could upload an HTML or SVG file that, when opened directly by an admin, executed JavaScript in the admin origin, enabling admin-session hijack and authenticated administrative actions against the admin API. The patch in version 5.33.3 introduces a shared helper that wraps and is called from both the Content API and admin upload controllers, ensuring identical security policy enforcement on every upload entry point.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe strapi/strapiversion unspecified

How to fix CVE-2026-22707

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-22707. EPSS is 0.19%. Act only if a listed version of Strapi is an open is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-434: Unrestricted Upload of File with Dangerous Type; CWE-693: Protection Mechanism Failure. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 14, 2026 · NIST NVD

    Detected

    Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions ( and ). The same restrictions were correctly enforced on the Admin Panel upload path. The upload plugin's security check was invoked in the admin upload controller but was missing from the Con

  2. Jun 17, 2026 · NIST NVD

    Updated

    Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions ( and ). The same restrictions were correctly enforced on the Admin Panel upload path. The upload plugin's security check was invoked in the admin upload controller but was missing from the Con

Sources

  • CVE.orgVulnerability recordCVE-2026-22707

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-22707

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-22707

    Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions ( and ). The same restr

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.