Vulnerability-Lookup

CNVD-2025-30339

Vulnerability from cnvd - Published: 2025-12-09

Title

Grav服务器端模板注入漏洞

Description

Grav是一套可扩展的用于个人博客、小型内容发布平台和单页产品展示的CMS（内容管理系统）。 Grav存在服务器端模板注入漏洞，攻击者可利用该漏洞导致任意代码执行。

Severity

高

Patch Name

Grav服务器端模板注入漏洞的补丁

Patch Description

Grav是一套可扩展的用于个人博客、小型内容发布平台和单页产品展示的CMS（内容管理系统）。 Grav存在服务器端模板注入漏洞，攻击者可利用该漏洞导致任意代码执行。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://getgrav.org/downloads

Reference

https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458

Impacted products

Name
Grav Grav <1.8.0-beta.27

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-66299",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-66299"
    }
  },
  "description": "Grav\u662f\u4e00\u5957\u53ef\u6269\u5c55\u7684\u7528\u4e8e\u4e2a\u4eba\u535a\u5ba2\u3001\u5c0f\u578b\u5185\u5bb9\u53d1\u5e03\u5e73\u53f0\u548c\u5355\u9875\u4ea7\u54c1\u5c55\u793a\u7684CMS\uff08\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff09\u3002\n\nGrav\u5b58\u5728\u670d\u52a1\u5668\u7aef\u6a21\u677f\u6ce8\u5165\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4efb\u610f\u4ee3\u7801\u6267\u884c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51:\r\nhttps://getgrav.org/downloads",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-30339",
  "openTime": "2025-12-09",
  "patchDescription": "Grav\u662f\u4e00\u5957\u53ef\u6269\u5c55\u7684\u7528\u4e8e\u4e2a\u4eba\u535a\u5ba2\u3001\u5c0f\u578b\u5185\u5bb9\u53d1\u5e03\u5e73\u53f0\u548c\u5355\u9875\u4ea7\u54c1\u5c55\u793a\u7684CMS\uff08\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff09\u3002\r\n\r\nGrav\u5b58\u5728\u670d\u52a1\u5668\u7aef\u6a21\u677f\u6ce8\u5165\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u4efb\u610f\u4ee3\u7801\u6267\u884c\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Grav\u670d\u52a1\u5668\u7aef\u6a21\u677f\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Grav Grav \u003c1.8.0-beta.27"
  },
  "referenceLink": "https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458",
  "serverity": "\u9ad8",
  "submitTime": "2025-12-03",
  "title": "Grav\u670d\u52a1\u5668\u7aef\u6a21\u677f\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2025-66299 (GCVE-0-2025-66299)

Vulnerability from cvelistv5 – Published: 2025-12-01 21:15 – Updated: 2025-12-02 14:07

Title

Security Sandbox Bypass with SSTI (Server Side Template Injection) in the Grav CMS

Summary

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, Grav CMS is vulnerable to a Server-Side Template Injection (SSTI) that allows any authenticated user with editor permissions to execute arbitrary code on the remote server, bypassing the existing security sandbox. Since the security sandbox does not fully protect the Twig object, it is possible to interact with it (e.g., call methods, read/write attributes) through maliciously crafted Twig template directives injected into a web page. This allows an authenticated editor to add arbitrary functions to the Twig attribute system.twig.safe_filters, effectively bypassing the Grav CMS sandbox. This vulnerability is fixed in 1.8.0-beta.27.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-02 14:07 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')
CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/getgrav/grav/security/advisori…	x_refsource_CONFIRM
https://github.com/getgrav/grav/commit/e37259527d…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
getgrav	grav	Affected: < 1.8.0-beta.27

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-66299",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-02T14:07:46.404721Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-02T14:07:58.544Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "grav",
          "vendor": "getgrav",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.8.0-beta.27"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Grav is a file-based Web platform. Prior to 1.8.0-beta.27, Grav CMS is vulnerable to a Server-Side Template Injection (SSTI) that allows any authenticated user with editor permissions to execute arbitrary code on the remote server, bypassing the existing security sandbox. Since the security sandbox does not fully protect the Twig object, it is possible to interact with it (e.g., call methods, read/write attributes) through maliciously crafted Twig template directives injected into a web page. This allows an authenticated editor to add arbitrary functions to the Twig attribute system.twig.safe_filters, effectively bypassing the Grav CMS sandbox. This vulnerability is fixed in 1.8.0-beta.27."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T21:15:11.704Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/getgrav/grav/security/advisories/GHSA-gjc5-8cfh-653x",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/getgrav/grav/security/advisories/GHSA-gjc5-8cfh-653x"
        },
        {
          "name": "https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458"
        }
      ],
      "source": {
        "advisory": "GHSA-gjc5-8cfh-653x",
        "discovery": "UNKNOWN"
      },
      "title": "Security Sandbox Bypass with SSTI (Server Side Template Injection) in the Grav CMS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-66299",
    "datePublished": "2025-12-01T21:15:11.704Z",
    "dateReserved": "2025-11-26T23:11:46.393Z",
    "dateUpdated": "2025-12-02T14:07:58.544Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.