CVE-2022-21648: Latte/latte Sandbox Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-36m2-8rhx-f36j
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CVSS 8.2
CWE-79
Published
Advisory Summary

CVE-2022-21648 is a HIGH (CVSS 8.2) sandbox bypass vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Latte/latte libraries in the Packagist ecosystem. The issue involves sandbox bypass in latte templates. Remediation is available by upgrading affected packages to version 2.10.8, 2.9.6, 2.8.8.

CVE-2022-21648 at a Glance

CVE Identifier CVE-2022-21648
GHSA Identifier GHSA-36m2-8rhx-f36j
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Latte/latte
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-21648

To remediate this vulnerability, upgrade all affected Latte/latte dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

latte/latte fixed: 2.10.8 
Upgrade latte/latte to 2.10.8
latte/latte fixed: 2.9.6 
Upgrade latte/latte to 2.9.6
latte/latte fixed: 2.8.8 
Upgrade latte/latte to 2.8.8
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for latte/latte

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-21648, inspect your project dependencies for Latte/latte:

inspect dependencies for latte/latte

Analyze the terminal output to locate any version of Latte/latte in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.10.8), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Latte/latte, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact The problem affects users who use the sandbox in Latte and templates from untrusted sources. ### Patches Sandbox first appeared in Latte 2.8.0. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8. ### References The issues were discovered by - JinYiTong (https://github.com/JinYiTong) - 赵钰迪 <20212010122@fudan.edu.cn>

CVE-2022-21648 Affected Latte/latte Versions

3 component(s)
Fixed Versions:
2.10.82.9.62.8.8
Product / Package Ecosystem Affected Versions Fixed Version
latte/latte
 Packagist
≥ 2.10.0
< 2.10.8
2.10.8
latte/latte
 Packagist
≥ 2.9.0
< 2.9.6
2.9.6
latte/latte
 Packagist
≥ 2.8.0
< 2.8.8
2.8.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nette/latte/security/advisories/GHSA-36m2-8rhx-f36j
NVD — CVE-2022-21648 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-21648
Security Fix Commit FIX COMMIT
https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0
Latte/latte Source Repository REPOSITORY
https://github.com/nette/latte

Frequently Asked Questions

What is CVE-2022-21648?
CVE-2022-21648 is a security vulnerability in Latte/latte involving Sandbox bypass in Latte templates under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Latte/latte versions are affected?
Affected versions include releases prior to 2.10.8, 2.9.6, 2.8.8 across affected packages: latte/latte.
What version fixes CVE-2022-21648?
Upgrading to 2.10.8, 2.9.6, 2.8.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is latte/latte affected?
Yes, latte/latte is affected in releases prior to 2.10.8, 2.9.6, 2.8.8. Upgrade your dependency to 2.10.8, 2.9.6, 2.8.8 or later.
What is the CVSS score of CVE-2022-21648?
CVE-2022-21648 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.
What CWE is associated with CVE-2022-21648?
CVE-2022-21648 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2022-21648?
Run the dependency tree command: 'inspect dependencies for latte/latte'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-36m2-8rhx-f36j",
  "modified" : "2022-01-14T19:42:25Z",
  "published" : "2022-01-06T23:17:07Z",
  "aliases" : [ "CVE-2022-21648" ],
  "summary" : "Sandbox bypass in Latte templates",
  "details" : "### Impact\nThe problem affects users who use the sandbox in Latte and templates from untrusted sources.\n\n### Patches\nSandbox first appeared in Latte 2.8.0. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8. \n\n### References\nThe issues were discovered by\n- JinYiTong (https://github.com/JinYiTong)\n- 赵钰迪 <20212010122@fudan.edu.cn>",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "latte/latte"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.10.0"
      }, {
        "fixed" : "2.10.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "latte/latte"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.9.0"
      }, {
        "fixed" : "2.9.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "latte/latte"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.8.0"
      }, {
        "fixed" : "2.8.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nette/latte/security/advisories/GHSA-36m2-8rhx-f36j"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-21648"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nette/latte"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-06T19:42:15Z",
    "nvd_published_at" : "2022-01-04T20:15:00Z"
  }
}