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HIGH

CVE-2026-58655

CVSS v3

8.8

HIGH

EPSS Score

1.1 %

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The bundled Grav Flex Objects plugin (getgrav/grav-plugin-flex-objects) before 1.4.0 contains a stored server-side template injection vulnerability. When rendering dynamic collection or object titles, the plugin passes user-controlled frontmatter values (page.header.flex.collection.title or page.header.flex.object.title) to Twig's template_from_string(), causing them to be evaluated as Twig code rather than treated as text. This path bypasses Grav's Security::cleanDangerousTwig() sanitization. A

Technical details

CVSS v3 Vector
3.1
Published
2026-07-15
Last Modified
2026-07-15

Frequently asked questions

What is CVE-2026-58655?

The bundled Grav Flex Objects plugin (getgrav/grav-plugin-flex-objects) before 1.4.0 contains a stored server-side template injection vulnerability. When rendering dynamic collection or object titles, the plugin passes user-controlled frontmatter values (page.header.flex.collection.title or page.header.flex.object.title) to Twig's template_from_string(), causing them to be evaluated as Twig code rather than treated as text. This path bypasses Grav's Security::cleanDangerousTwig() sanitization. A

Is CVE-2026-58655 actively exploited?

Active exploitation of CVE-2026-58655 has not been confirmed. The EPSS score is 1.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-58655?

CVE-2026-58655 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.

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