CVE-2026-61825: Code16/sharp Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-vj3q-vp3g-j9c8
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CVSS 8.7
CWE-79
Published
Advisory Summary

CVE-2026-61825 is a HIGH (CVSS 8.7) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Code16/sharp libraries in the Packagist ecosystem. The issue involves code16/sharp has a stored xss via data-html-content sanitizer bypass. Remediation is available by upgrading affected packages to version 9.22.5.

CVE-2026-61825 at a Glance

CVE Identifier CVE-2026-61825
GHSA Identifier GHSA-vj3q-vp3g-j9c8
Severity HIGH
CVSS v3.1 Base Score 8.7
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Code16/sharp
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.7

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

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

How to Fix CVE-2026-61825

To remediate this vulnerability, upgrade all affected Code16/sharp dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

code16/sharp fixed: 9.22.5 
Upgrade code16/sharp to 9.22.5
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 code16/sharp

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-61825, inspect your project dependencies for Code16/sharp:

inspect dependencies for code16/sharp

Analyze the terminal output to locate any version of Code16/sharp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.22.5), 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 Code16/sharp, 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 vulnerability allows an attacker to bypass the HTML sanitizer by using the `data-html-content` attribute in the content of a `SharpEditorFormField`. ### Patches The field must now explicitly configure `SharpFormEditorField::RAW_HTML` in the toolbar to keep this behavior. **When using the `RAW_HTML` button, the application using `code16/sharp` must sanitize manually the content coming from the field**. Vulnerability has been patched in version 9.22.5. ### Workarounds Sanitize every contents of editors manually (e.g. using Symfony/HtmlSanitizer)

CVE-2026-61825 Affected Code16/sharp Versions

1 component(s)
Fixed Versions:
9.22.5
Product / Package Ecosystem Affected Versions Fixed Version
code16/sharp
 Packagist
< 9.22.5
9.22.5

References

GitHub Advisory / Wiki ADVISORY
https://github.com/code16/sharp/security/advisories/GHSA-vj3q-vp3g-j9c8
NVD — CVE-2026-61825 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-61825
Security Fix Commit FIX COMMIT
https://github.com/code16/sharp/commit/ec509a22c808a5bd9dfad6a0a85c92ce6f411e21
Code16/sharp Source Repository REPOSITORY
https://github.com/code16/sharp

Frequently Asked Questions

What is CVE-2026-61825?
CVE-2026-61825 is a security vulnerability in Code16/sharp involving code16/sharp has a stored XSS via data-html-content Sanitizer Bypass under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Code16/sharp versions are affected?
Affected versions include releases prior to 9.22.5 across affected packages: code16/sharp.
What version fixes CVE-2026-61825?
Upgrading to 9.22.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is code16/sharp affected?
Yes, code16/sharp is affected in releases prior to 9.22.5. Upgrade your dependency to 9.22.5 or later.
What is the CVSS score of CVE-2026-61825?
CVE-2026-61825 has a CVSS v3.1 base score of 8.7 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2026-61825?
CVE-2026-61825 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-2026-61825?
Run the dependency tree command: 'inspect dependencies for code16/sharp'. 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-vj3q-vp3g-j9c8",
  "modified" : "2026-09-25T15:00:44Z",
  "published" : "2026-09-25T15:00:44Z",
  "aliases" : [ "CVE-2026-61825" ],
  "summary" : "code16/sharp has a stored XSS via data-html-content Sanitizer Bypass",
  "details" : "### Impact\nThe vulnerability allows an attacker to bypass the HTML sanitizer by using the `data-html-content` attribute in the content of a `SharpEditorFormField`. \n\n### Patches\nThe field must now explicitly configure `SharpFormEditorField::RAW_HTML` in the toolbar to keep this behavior. **When using the  `RAW_HTML` button, the application using `code16/sharp` must sanitize manually the content coming from the field**. \nVulnerability has been patched in version 9.22.5.\n\n### Workarounds\nSanitize every contents of editors manually (e.g. using Symfony/HtmlSanitizer)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "code16/sharp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.22.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/code16/sharp/security/advisories/GHSA-vj3q-vp3g-j9c8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-61825"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/code16/sharp/commit/ec509a22c808a5bd9dfad6a0a85c92ce6f411e21"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/code16/sharp"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-25T15:00:44Z",
    "nvd_published_at" : "2026-09-24T19:17:15Z"
  }
}