CVE-2025-70844: Kantorge/yaffa Yaffa Vulnerable To Cross Site Vulnerability

MODERATE

Advisory Identifier: GHSA-pq95-94c9-j987

CVSS 6.1

Published 2026-04-07

Advisory Summary

CVE-2025-70844 is a MODERATE (CVSS 6.1) yaffa vulnerable to cross site vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Kantorge/yaffa libraries in the Packagist ecosystem. The issue involves yaffa vulnerable to cross site scripting. Remediation is available in the latest vendor maintenance releases.

CVE-2025-70844 at a Glance

CVE Identifier CVE-2025-70844

GHSA Identifier GHSA-pq95-94c9-j987

Severity MODERATE

CVSS v3.1 Base Score 6.1

CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Product Kantorge/yaffa

Package Ecosystem Packagist

Published Date 2026-04-07

Last Updated 2026-04-10

Security Impact

CVSS: 6.1

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:L/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 Low (C:L)

Integrity Low (I:L)

Availability None (A:N)

How to Fix CVE-2025-70844

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

kantorge/yaffa fixed: Latest secure release

Upgrade kantorge/yaffa to Latest secure release

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 kantorge/yaffa

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-70844, inspect your project dependencies for Kantorge/yaffa:

inspect dependencies for kantorge/yaffa

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

yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.

CVE-2025-70844 Affected Kantorge/yaffa Versions

1 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
kantorge/yaffa	Packagist	≤ 2.0.0

References

NVD — CVE-2025-70844 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-70844

Kantorge/yaffa Source Repository REPOSITORY

https://github.com/J4cky1028/vulnerability-research/tree/main/CVE-2025-70844

Kantorge/yaffa Source Repository REPOSITORY

https://github.com/kantorge/yaffa

Frequently Asked Questions

What is CVE-2025-70844?

CVE-2025-70844 is a security vulnerability in Kantorge/yaffa involving yaffa vulnerable to Cross Site Scripting under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').

Which Kantorge/yaffa versions are affected?

Affected versions include releases prior to current release patches across affected packages: kantorge/yaffa.

What version fixes CVE-2025-70844?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Is kantorge/yaffa affected?

Yes, kantorge/yaffa is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

What is the CVSS score of CVE-2025-70844?

CVE-2025-70844 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

What CWE is associated with CVE-2025-70844?

CVE-2025-70844 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-2025-70844?

Run the dependency tree command: 'inspect dependencies for kantorge/yaffa'. 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-pq95-94c9-j987",
  "modified" : "2026-04-10T14:10:56Z",
  "published" : "2026-04-07T18:31:37Z",
  "aliases" : [ "CVE-2025-70844" ],
  "summary" : "yaffa vulnerable to Cross Site Scripting",
  "details" : "yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the \"Add Account Group\" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "kantorge/yaffa"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-70844"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/J4cky1028/vulnerability-research/tree/main/CVE-2025-70844"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kantorge/yaffa"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-10T14:10:56Z",
    "nvd_published_at" : "2026-04-07T17:16:26Z"
  }
}

CVSS V3

6.1 MODERATE