CVE-2026-6745: Bagisto/bagisto Cross-Site Scripting Vulnerability

LOW
Advisory Identifier: GHSA-65fp-7g2v-658r
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CVSS 3.5
CWE-79
Published
Advisory Summary

CVE-2026-6745 is a LOW (CVSS 3.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Bagisto/bagisto libraries in the Packagist ecosystem. The issue involves bagisto affected by cross-site scripting. Remediation is available in the latest vendor maintenance releases.

CVE-2026-6745 at a Glance

CVE Identifier CVE-2026-6745
GHSA Identifier GHSA-65fp-7g2v-658r
Severity LOW
CVSS v3.1 Base Score 3.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Bagisto/bagisto
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.5

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:U/C:N/I:L/A:N).

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

How to Fix CVE-2026-6745

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

bagisto/bagisto fixed: Latest secure release 
Upgrade bagisto/bagisto 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 bagisto/bagisto

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-6745, inspect your project dependencies for Bagisto/bagisto:

inspect dependencies for bagisto/bagisto

Analyze the terminal output to locate any version of Bagisto/bagisto 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 Bagisto/bagisto, 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

A vulnerability was determined in Bagisto up to 2.3.15. Affected by this vulnerability is an unknown functionality of the component Custom Scripts Handler. This manipulation causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and explained: "We already replied on the github advisories. All the security issues are addressed through security advisory. We will fix this in our upcomming releases."

CVE-2026-6745 Affected Bagisto/bagisto Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
bagisto/bagisto
 Packagist
≤ 2.3.15

References

NVD — CVE-2026-6745 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6745
drive.google.com/drive/folders/10p6s... WEB
https://drive.google.com/drive/folders/10p6SYcSVyfaaTg_dgItzMJvqixcmKnHR?usp=sharing
Bagisto/bagisto Source Repository REPOSITORY
https://github.com/bagisto/bagisto
vuldb.com/submit/794681 WEB
https://vuldb.com/submit/794681
vuldb.com/vuln/358436 WEB
https://vuldb.com/vuln/358436
vuldb.com/vuln/358436/cti WEB
https://vuldb.com/vuln/358436/cti

Frequently Asked Questions

What is CVE-2026-6745?
CVE-2026-6745 is a security vulnerability in Bagisto/bagisto involving Bagisto affected by Cross-site Scripting under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Bagisto/bagisto versions are affected?
Affected versions include releases prior to current release patches across affected packages: bagisto/bagisto.
What version fixes CVE-2026-6745?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is bagisto/bagisto affected?
Yes, bagisto/bagisto 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-2026-6745?
CVE-2026-6745 has a CVSS v3.1 base score of 3.5 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-6745?
CVE-2026-6745 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-2026-6745?
Run the dependency tree command: 'inspect dependencies for bagisto/bagisto'. 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-65fp-7g2v-658r",
  "modified" : "2026-05-06T22:07:13Z",
  "published" : "2026-04-21T21:31:23Z",
  "aliases" : [ "CVE-2026-6745" ],
  "summary" : "Bagisto affected by Cross-site Scripting",
  "details" : "A vulnerability was determined in Bagisto up to 2.3.15. Affected by this vulnerability is an unknown functionality of the component Custom Scripts Handler. This manipulation causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and explained: \"We already replied on the github advisories. All the security issues are addressed through security advisory. We will fix this in our upcomming releases.\"",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "bagisto/bagisto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.3.15"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-6745"
  }, {
    "type" : "WEB",
    "url" : "https://drive.google.com/drive/folders/10p6SYcSVyfaaTg_dgItzMJvqixcmKnHR?usp=sharing"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bagisto/bagisto"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/794681"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/358436"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/358436/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-06T22:07:13Z",
    "nvd_published_at" : "2026-04-21T19:16:18Z"
  }
}