CVE-2019-25095: Ldapcherry Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-vq8w-x8v7-f88m
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2019-25095 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Ldapcherry libraries in the PyPI ecosystem. The issue involves ldapcherry cross-site scripting vulnerbaility. Remediation is available by upgrading affected packages to version 1.0.0.

CVE-2019-25095 at a Glance

CVE Identifier CVE-2019-25095
GHSA Identifier GHSA-vq8w-x8v7-f88m
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 Ldapcherry
Package Ecosystem PyPI
Published Date
Last Updated

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-2019-25095

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

ldapcherry fixed: 1.0.0 
pip install ldapcherry>=1.0.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show ldapcherry

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2019-25095, inspect your installed packages using pip:

pip show ldapcherry

Analyze the terminal output to locate any version of Ldapcherry in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.0), your application is affected.

Note: The pip show ldapcherry command checks currently installed packages in your active Python environment.

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 Ldapcherry, 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, which was classified as problematic, was found in kakwa LdapCherry up to 0.x. Affected is an unknown function of the component URL Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 1.0.0 is able to address this issue. The name of the patch is 6f98076281e9452fdb1adcd1bcbb70a6f968ade9. It is recommended to upgrade the affected component. VDB-217434 is the identifier assigned to this vulnerability.

CVE-2019-25095 Affected Ldapcherry Versions

1 component(s)
Fixed Versions:
1.0.0
Product / Package Ecosystem Affected Versions Fixed Version
ldapcherry
pypi/ldapcherry
PyPI
< 1.0.0
1.0.0

References

NVD — CVE-2019-25095 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-25095
Ldapcherry Source Repository REPOSITORY
https://github.com/kakwa/ldapcherry/pull/16
Security Fix Commit FIX COMMIT
https://github.com/kakwa/ldapcherry/commit/6f98076281e9452fdb1adcd1bcbb70a6f968ade9
Ldapcherry Source Repository REPOSITORY
https://github.com/kakwa/ldapcherry
Ldapcherry Release RELEASE
https://github.com/kakwa/ldapcherry/releases/tag/1.0.0
Ldapcherry Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/ldapcherry/PYSEC-2023-19.yaml
vuldb.com/ WEB
https://vuldb.com/?ctiid.217434
vuldb.com/ WEB
https://vuldb.com/?id.217434

Frequently Asked Questions

What is CVE-2019-25095?
CVE-2019-25095 is a security vulnerability in Ldapcherry involving LdapCherry Cross-site Scripting vulnerbaility under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Ldapcherry versions are affected?
Affected versions include releases prior to 1.0.0 across affected packages: ldapcherry.
What version fixes CVE-2019-25095?
Upgrading to 1.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ldapcherry affected?
Yes, ldapcherry is affected in releases prior to 1.0.0. Upgrade your dependency to 1.0.0 or later.
What is the CVSS score of CVE-2019-25095?
CVE-2019-25095 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-2019-25095?
CVE-2019-25095 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 PyPI dependencies for CVE-2019-25095?
Run the dependency tree command: 'pip show ldapcherry'. 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-vq8w-x8v7-f88m",
  "modified" : "2024-09-27T21:42:45Z",
  "published" : "2023-01-05T09:30:28Z",
  "aliases" : [ "CVE-2019-25095" ],
  "summary" : "LdapCherry Cross-site Scripting vulnerbaility",
  "details" : "A vulnerability, which was classified as problematic, was found in kakwa LdapCherry up to 0.x. Affected is an unknown function of the component URL Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 1.0.0 is able to address this issue. The name of the patch is 6f98076281e9452fdb1adcd1bcbb70a6f968ade9. It is recommended to upgrade the affected component. VDB-217434 is the identifier assigned to this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ldapcherry"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-25095"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kakwa/ldapcherry/pull/16"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kakwa/ldapcherry/commit/6f98076281e9452fdb1adcd1bcbb70a6f968ade9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kakwa/ldapcherry"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kakwa/ldapcherry/releases/tag/1.0.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/ldapcherry/PYSEC-2023-19.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.217434"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.217434"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-09T20:03:41Z",
    "nvd_published_at" : "2023-01-05T08:15:00Z"
  }
}