CWE-393

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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d88e8e4a3b52bd5b2ff3eceba4b29d1b5506d066"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53092.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-9058"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295",
      "CWE-393"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-25T14:16:27Z",
    "severity": "CRITICAL"
  },
  "details": "Szafir SDK returns a success status code from the cryptographic digital signature verification process (i.e. /VerifyingTaskItem/Signature/VerificationResult/Result/@code == 0, \"Positively verified\") even when the trust status of the signer\u0027s certificate could not be established (i.e. /VerifyingTaskItem/Signature/VerificationResult/SigningCertificate/@certificateType == \"nondetermined\"). This causes consuming applications to incorrectly treat the signature as valid despite an unverified certificate chain, enabling authentication bypass and user impersonation.\n\nThis issue was fixed in version 463.",
  "id": "GHSA-7hq7-5m7p-r2pp",
  "modified": "2026-05-26T13:30:42Z",
  "published": "2026-05-26T13:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9058"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/posts/2026/05/CVE-2026-9058"
    },
    {
      "type": "WEB",
      "url": "https://www.elektronicznypodpis.pl"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-55958"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-393",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T20:17:16Z",
    "severity": "HIGH"
  },
  "details": "Out-of-bounds write in the Renesas TSIP TLS 1.3 transcript buffer. In tsip_StoreMessage() the capacity check guarding the fixed message bag (MSGBAG_SIZE) sets an error code but fails to return, so execution falls through to an XMEMCPY that writes past the end of the buffer once the accumulated TLS 1.3 handshake transcript exceeds MSGBAG_SIZE (8 KB), corrupting adjacent heap state and potentially causing a remote denial of service crash. The bag is sized to hold a normal handshake, so this is reached only by an unusually large but valid certificate chain, or by a malicious or man-in-the-middle server sending an oversized handshake message to a client that does not strictly verify the chain. This only affects builds using the Renesas TSIP TLS port (WOLFSSL_RENESAS_TSIP_TLS) as a TLS 1.3 client on Renesas MCUs with TSIP hardware enabled, and is rated High within those builds. All other configurations are unaffected.",
  "id": "GHSA-8mfx-6cpc-cr47",
  "modified": "2026-06-26T21:32:11Z",
  "published": "2026-06-25T21:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55958"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/10705"
    },
    {
      "type": "WEB",
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.7.42.1"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "getgrav/grav"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.42.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-37897"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-393",
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-19T22:11:07Z",
    "nvd_published_at": "2023-07-18T21:15:15Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nThe fix for SSTI using `|map`, `|filter` and `|reduce` twigs implemented in the commit [71bbed1](https://github.com/getgrav/grav/commit/71bbed12f950de8335006d7f91112263d8504f1b) introduces bypass of the denylist due to incorrect return value from `isDangerousFunction()`, which allows to execute the payload prepending double backslash (`\\\\`) \n\n### Details\nThe `isDangerousFunction()` check in version 1.7.42 and onwards retuns `false` value instead of `true` when the `\\` symbol is found in the `$name`.\n\n```php\n...\n        if (strpos($name, \"\\\\\") !== false) {\n            return false;\n        }\n\n        if (in_array($name, $commandExecutionFunctions)) {\n            return true;\n        }\n...\n```\nBased on the code where the function is used, it is expected that any dangerous condition would return `true`\n```php\n    /**\n     * @param Environment $env\n     * @param array $array\n     * @param callable|string $arrow\n     * @return array|CallbackFilterIterator\n     * @throws RuntimeError\n     */\n    function mapFunc(Environment $env, $array, $arrow)\n    {\n        if (!$arrow instanceof \\Closure \u0026\u0026 !is_string($arrow) || Utils::isDangerousFunction($arrow)) {\n            throw new RuntimeError(\u0027Twig |map(\"\u0027 . $arrow . \u0027\") is not allowed.\u0027);\n\t}\n```\nwhen `|map(\u0027\\system\u0027)` is used in the malicious payload, the single backslash is dropped prior to reaching `strpos($name, \u0027\\\\\u0027)` check, thus `$name` variable already has no backslash, and the command is blacklisted because it reaches the  `if (in_array($name, $commandExecutionFunctions)) {` validation step. \n\nHowever if `|map(\u0027\\\\system\u0027)` is used (i.e. double backslash), then the `strpos($name, \"\\\\\") !== false` takes effect, and `isDangerousFunction()` returns `false` , in which case the `RuntimeError` is not generated, and blacklist is bypassed leading to code execution.\n\n### Exploit Conditions\nThis vulnerability can be exploited if the attacker has access to:\n\n1. an Administrator account, or\n2. a non-administrator, user account that has Admin panel access and Create/Update page permissions\n\n### Steps to reproduce\n\n1. Log in to Grav Admin using an administrator account.\n2. Navigate to `Accounts \u003e Add`, and ensure that the following permissions are assigned when creating a new low-privileged user: \n    - Login to Admin - Allowed\n    - Page Update - Allowed\n3. Log out of Grav Admin\n4. Login using the account created in step 2.\n5. Choose `Pages -\u003e Home`\n6. Click the `Advanced` tab and select the checkbox beside `Twig` to ensure that Twig processing is enabled for the modified webpage.\n7. Under the `Content` tab, insert the following payload within the editor:\n```{{ [\u0027id\u0027] | map(\u0027\\\\system\u0027) | join() }}```\n8. Click the `Preview` button. Observe that the output of the id shell command is returned in the preview.\n\n### Mitigation\n\n```diff\ndiff --git a/system/src/Grav/Common/Utils.php b/system/src/Grav/Common/Utils.php\nindex 2f121bbe3..7b267cd0f 100644\n--- a/system/src/Grav/Common/Utils.php\n+++ b/system/src/Grav/Common/Utils.php\n@@ -2069,7 +2069,7 @@ abstract class Utils\n         }\n \n         if (strpos($name, \"\\\\\") !== false) {\n-            return false;\n+            return true;\n         }\n \n         if (in_array($name, $commandExecutionFunctions)) {\n                                                                         \n```\n\n",
  "id": "GHSA-9436-3gmp-4f53",
  "modified": "2023-07-19T22:11:07Z",
  "published": "2023-07-19T22:11:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-9436-3gmp-4f53"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37897"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/commit/71bbed12f950de8335006d7f91112263d8504f1b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/commit/b4c62101a43051fc7f5349c7d0a5b6085375c1d7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getgrav/grav"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "grav Server-side Template Injection (SSTI) mitigation bypass"
}