CVE-2026-58655

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Source

https://cve.org/CVERecord?id=CVE-2026-58655

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58655.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-58655

Aliases

GHSA-623v-m3c4-3pw8

Published

2026-07-15T11:25:34.186Z

Modified

2026-07-17T03:48:09.410038721Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Grav Flex Objects - Server-Side Template Injection via Dynamic Titles

Details

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 templatefromstring(), causing them to be evaluated as Twig code rather than treated as text. This path bypasses Grav's Security::cleanDangerousTwig() sanitization. An attacker who can control the title frontmatter of a publicly reachable Flex Objects page can achieve arbitrary Twig execution and escalate to remote command execution via access to internal Grav services such as the scheduler.

Database specific

{
    "cwe_ids": [
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58655.json",
    "cna_assigner": "VulnCheck"
}

References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type

GIT

Repo

https://github.com/getgrav/grav

Events

Introduced

Fixed

9b149307efc9fd0fb0865bd22c1d717b25c1f31e

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

0.*

0.8.0

0.9.0

0.9.10

0.9.11

0.9.12

0.9.13

0.9.14

0.9.15

0.9.16

0.9.17

0.9.18

0.9.19

0.9.2

0.9.3

0.9.4

0.9.5

0.9.6

0.9.7

0.9.8

0.9.9

1.*

1.1.0-beta.1

1.1.0-beta.2

1.1.0-beta.3

1.1.0-beta.4

1.1.0-beta.5

1.1.0-rc.1

1.1.0-rc.2

1.1.0-rc.3

1.1.17

1.1.9-rc.1

1.1.9-rc.2

1.1.9-rc.3

1.2.0

1.2.1

1.2.2

1.2.3

1.2.4

1.3.0

1.3.1

1.3.10

1.3.2

1.3.3

1.3.4

1.3.5

1.3.6

1.3.7

1.3.8

1.3.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58655.json"