CVE-2025-65956: Getformwork/formwork Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-7j46-f57w-76pj
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CVSS 6.5
CWE-79
Published
Advisory Summary

CVE-2025-65956 is a MODERATE (CVSS 6.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Getformwork/formwork libraries in the Packagist ecosystem. The issue involves formwork cms has stored cross-site scripting vulnerebility in blog tags. Remediation is available by upgrading affected packages to version 2.2.0.

CVE-2025-65956 at a Glance

CVE Identifier CVE-2025-65956
GHSA Identifier GHSA-7j46-f57w-76pj
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Getformwork/formwork
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:L/I:L/A:L).

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 Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2025-65956

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

getformwork/formwork fixed: 2.2.0 
Upgrade getformwork/formwork to 2.2.0
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 getformwork/formwork

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-65956, inspect your project dependencies for Getformwork/formwork:

inspect dependencies for getformwork/formwork

Analyze the terminal output to locate any version of Getformwork/formwork in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.0), 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 Getformwork/formwork, 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

### Summary Inserting unsanitized data into the blog tag field in Formwork CMS results in stored cross‑site scripting (XSS). Any user with credentials to the Formwork CMS who accesses or edits an affected blog post will have attacker‑controlled script executed in their browser. Because the issue is persistent and impacts privileged administrative workflows, the severity is elevated. ### Details Formwork CMS fails to properly sanitize data inserted into tags, before saving them and rendering them into the edit blog interface. When a specially crafted tag becomes saved as a tag into the system, it is unable to be removed. Any attempt to remove the tag from the affected post, causes the XSS to trigger once again. Additionally, once the malicious tag is present, managing standard tags becomes impossible. This is due to script execution on attempted modification. This leads to a form of interface lockout where the payload continually reinserts itself due to the stored, unsafe rendering. ### Impact This is a stored cross‑site scripting (XSS) vulnerability. This impacts all users who access the affected blog post’s edit page. ### Patches [Formwork 2.2.0](https://github.com/getformwork/formwork/releases/tag/2.2.0) ensures proper escaping of user input in tag fields.

CVE-2025-65956 Affected Getformwork/formwork Versions

1 component(s)
Fixed Versions:
2.2.0
Product / Package Ecosystem Affected Versions Fixed Version
getformwork/formwork
 Packagist
< 2.2.0
2.2.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/getformwork/formwork/security/advisories/GHSA-7j46-f57w-76pj
NVD — CVE-2025-65956 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-65956
Getformwork/formwork Source Repository REPOSITORY
https://github.com/getformwork/formwork/pull/791
Security Fix Commit FIX COMMIT
https://github.com/getformwork/formwork/commit/4abcd60ae7692b46d316f956b0b20fb85336f3b2
Getformwork/formwork Source Repository REPOSITORY
https://github.com/getformwork/formwork

Frequently Asked Questions

What is CVE-2025-65956?
CVE-2025-65956 is a security vulnerability in Getformwork/formwork involving Formwork CMS has Stored Cross-Site Scripting Vulnerebility in Blog Tags under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Getformwork/formwork versions are affected?
Affected versions include releases prior to 2.2.0 across affected packages: getformwork/formwork.
What version fixes CVE-2025-65956?
Upgrading to 2.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is getformwork/formwork affected?
Yes, getformwork/formwork is affected in releases prior to 2.2.0. Upgrade your dependency to 2.2.0 or later.
What is the CVSS score of CVE-2025-65956?
CVE-2025-65956 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.
What CWE is associated with CVE-2025-65956?
CVE-2025-65956 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-2025-65956?
Run the dependency tree command: 'inspect dependencies for getformwork/formwork'. 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-7j46-f57w-76pj",
  "modified" : "2026-02-18T23:48:02Z",
  "published" : "2025-11-24T22:13:32Z",
  "aliases" : [ "CVE-2025-65956" ],
  "summary" : "Formwork CMS has Stored Cross-Site Scripting Vulnerebility in Blog Tags",
  "details" : "### Summary\nInserting unsanitized data into the blog tag field in Formwork CMS results in stored cross‑site scripting (XSS).\nAny user with credentials to the Formwork CMS who accesses or edits an affected blog post will have attacker‑controlled script executed in their browser. Because the issue is persistent and impacts privileged administrative workflows, the severity is elevated.\n\n### Details\nFormwork CMS fails to properly sanitize data inserted into tags, before saving them and rendering them into the edit blog interface.  When a specially crafted tag becomes saved as a tag into the system, it is unable to be removed.  Any attempt to remove the tag from the affected post, causes the XSS to trigger once again.\n\nAdditionally, once the malicious tag is present, managing standard tags becomes impossible. This is due to script execution on attempted modification. This leads to a form of interface lockout where the payload continually reinserts itself due to the stored, unsafe rendering.\n\n### Impact\nThis is a stored cross‑site scripting (XSS) vulnerability.\n\nThis impacts all users who access the affected blog post’s edit page.\n\n### Patches\n[Formwork 2.2.0](https://github.com/getformwork/formwork/releases/tag/2.2.0) ensures proper escaping of user input in tag fields.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "getformwork/formwork"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/security/advisories/GHSA-7j46-f57w-76pj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-65956"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/pull/791"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/commit/4abcd60ae7692b46d316f956b0b20fb85336f3b2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/getformwork/formwork"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-11-24T22:13:32Z",
    "nvd_published_at" : "2025-11-26T00:15:50Z"
  }
}