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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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f37d5d5392f0d9986ab177ceccfd349ed392d4955886d1265a8693020a5eecd4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"grav","vendor":"getgrav","versions":[{"lessThan":"1.4.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.4.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-94","description":"Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-623v-m3c4-3pw8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/adp/0/references/0
{"name":"GitHub Security Advisory (GHSA-623v-m3c4-3pw8)","tags":["vendor-advisory"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-623v-m3c4-3pw8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Grav Flex Objects - Server-Side Template Injection via Dynamic Titles","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/grav-flex-objects-server-side-template-injection-via-dynamic-titles"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b105134339704f08d071fcdcf6c6cbae51c7b4edf631700c76b881761035c95 · sha256:7256b5a86508cb45… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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