Critical

Arbitrary code injection in json-sanitizer

  • Disclosed: 16.06.2021
  • Updated: 11.10.2026 11:21

OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) com.mikesamuel:json-sanitizer < 1.2.2 1.2.2

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-611
Platform
Java / Kotlin (Maven)
Package
com.mikesamuel:json-sanitizer
Disclosed
16.06.2021
Updated
11.10.2026 11:21

Sources and licenses

OSV / GitHub Advisory Database - GHSA-mm8j-9x84-m9cv - CC BY 4.0

Vulnerability history: com.mikesamuel:json-sanitizer

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
3
First → latest
05.2021 02.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 1
  • Medium 1

Disclosures per year

  1. 2021: 2
  2. 2022: 1
  3. 2023: 0
  4. 2024: 0
  5. 2025: 0
  6. 2026: 0
  1. Medium · 6.1 CVE-2020-13973 < 1.2.1 1.2.1
  2. Arbitrary code injection in json-sanitizer this entry
    Critical · 9.8 CVE-2021-23899 < 1.2.2 1.2.2

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Free to subscribe. Unsubscribe with one click in any email.