What’s Vulnerable › Vulnerabilities

CVE-2023-36828: Statamic's Antlers sanitizer cannot effectively sanitize malicious SVG

• Severity: medium (CVSS 5.4 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: yes
• Published: 2023-07-05 · updated 2026-06-17
• Weakness: CWE-79

Description

Statamic is a flat-first, Laravel and Git powered content management system. Prior to version 4.10.0, the SVG tag does not sanitize malicious SVG. Therefore, an attacker can exploit this vulnerability to perform cross-site scripting attacks using SVG, even when using the `sanitize` function. Version 4.10.0 contains a patch for this issue.

Affected products

• Statamic: before 4.10.0 — fixed in 4.10.0

How to fix

Upgrade to a fixed version: Statamic 4.10.0. Check the vendor advisory for mitigations.

References

• https://github.com/statamic/cms/blob/f806b6b007ddcf066082eef175653c5beaa96d60/src/Http/Controllers/CP/Fieldtypes/FilesFieldtypeController.php#L15
• https://github.com/statamic/cms/blob/f806b6b007ddcf066082eef175653c5beaa96d60/src/Tags/Svg.php#L36-L40
• https://github.com/statamic/cms/commit/c714893ad92de6e5ede17b501003441af505b30d
• https://github.com/statamic/cms/pull/8408
• https://github.com/statamic/cms/releases/tag/v4.10.0
• https://github.com/statamic/cms/security/advisories/GHSA-6r5g-cq4q-327g
• https://github.com/statamic/cms/blob/f806b6b007ddcf066082eef175653c5beaa96d60/src/Http/Controllers/CP/Fieldtypes/FilesFieldtypeController.php#L15
• https://github.com/statamic/cms/blob/f806b6b007ddcf066082eef175653c5beaa96d60/src/Tags/Svg.php#L36-L40
• https://github.com/statamic/cms/commit/c714893ad92de6e5ede17b501003441af505b30d
• https://github.com/statamic/cms/pull/8408
• https://github.com/statamic/cms/releases/tag/v4.10.0
• https://github.com/statamic/cms/security/advisories/GHSA-6r5g-cq4q-327g

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