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
2026-07-15T11:25:34Z
Modified
2026-10-28T02:30:30Z
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 template_from_string(), 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 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-94"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58655.json"
}
References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type
GIT
Repo
https://github.com/getgrav/grav
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9b149307efc9fd0fb0865bd22c1d717b25c1f31e
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.4.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.4.0"
                }
            ],
            "source":  "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"