What’s Vulnerable › Vulnerabilities

CVE-2023-48701: Statamic CMS vulnerable to Cross-site Scripting via uploaded assets

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-21 · updated 2026-06-17
• Weakness: CWE-79

Description

Statamic CMS is a Laravel and Git powered content management system (CMS). Prior to versions 3.4.15 an 4.36.0, HTML files crafted to look like images may be uploaded regardless of mime validation. This is only applicable on front-end forms using the "Forms" feature containing an assets field, or within the control panel which requires authentication. This issue has been patched on 3.4.15 and 4.36.0.

Affected products

• Statamic: before 3.4.15; from 4.0.0 before 4.36.0 — fixed in 3.4.15, 4.36.0

How to fix

Upgrade to a fixed version: Statamic 3.4.15, 4.36.0. Check the vendor advisory for mitigations.

References

• https://github.com/statamic/cms/releases/tag/v3.4.15
• https://github.com/statamic/cms/releases/tag/v4.36.0
• https://github.com/statamic/cms/security/advisories/GHSA-8jjh-j3c2-cjcv
• https://github.com/statamic/cms/releases/tag/v3.4.15
• https://github.com/statamic/cms/releases/tag/v4.36.0
• https://github.com/statamic/cms/security/advisories/GHSA-8jjh-j3c2-cjcv

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