CVE-2025-62528: Taguette Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-g9qw-g6rv-3889
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2025-62528 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Taguette libraries in the PyPI ecosystem. The issue involves taguette vulnerable to cross-site scripting via tag name, tag description, document name and document description. Remediation is available by upgrading affected packages to version 1.5.0.

CVE-2025-62528 at a Glance

CVE Identifier CVE-2025-62528
GHSA Identifier GHSA-g9qw-g6rv-3889
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Taguette
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.4

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

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

How to Fix CVE-2025-62528

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

taguette fixed: 1.5.0 
pip install taguette>=1.5.0
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 taguette

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-62528, inspect your installed packages using pip:

pip show taguette

Analyze the terminal output to locate any version of Taguette in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.0), your application is affected.

Note: The pip show taguette 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 Taguette, 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 An issue has been discovered in Taguette versions prior to 1.5.0. It was possible for a project member to put JavaScript in name or description fields which would run on project load. ### Patches Users should upgrade to Taguette 1.5.0. ### References - https://gitlab.com/remram44/taguette/-/issues/330

CVE-2025-62528 Affected Taguette Versions

1 component(s)
Fixed Versions:
1.5.0
Product / Package Ecosystem Affected Versions Fixed Version
taguette
pypi/taguette
PyPI
< 1.5.0
1.5.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/remram44/taguette/security/advisories/GHSA-g9qw-g6rv-3889
Taguette Source Repository REPOSITORY
https://github.com/remram44/taguette
NVD — CVE-2025-62528 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-62528
Taguette Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/taguette/PYSEC-2025-188.yaml
gitlab.com/remram44/taguette/-... WEB
https://gitlab.com/remram44/taguette/-/issues/330

Frequently Asked Questions

What is CVE-2025-62528?
CVE-2025-62528 is a security vulnerability in Taguette involving Taguette vulnerable to cross-site scripting via tag name, tag description, document name and document description under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Taguette versions are affected?
Affected versions include releases prior to 1.5.0 across affected packages: taguette.
What version fixes CVE-2025-62528?
Upgrading to 1.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is taguette affected?
Yes, taguette is affected in releases prior to 1.5.0. Upgrade your dependency to 1.5.0 or later.
What is the CVSS score of CVE-2025-62528?
CVE-2025-62528 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2025-62528?
CVE-2025-62528 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-2025-62528?
Run the dependency tree command: 'pip show taguette'. 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-g9qw-g6rv-3889",
  "modified" : "2026-06-08T19:50:39Z",
  "published" : "2025-10-20T20:27:01Z",
  "aliases" : [ "CVE-2025-62528" ],
  "summary" : "Taguette vulnerable to cross-site scripting via tag name, tag description, document name and document description",
  "details" : "### Impact\nAn issue has been discovered in Taguette versions prior to 1.5.0. It was possible for a project member to put JavaScript in name or description fields which would run on project load.\n\n### Patches\nUsers should upgrade to Taguette 1.5.0.\n\n### References\n- https://gitlab.com/remram44/taguette/-/issues/330",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "taguette"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/remram44/taguette/security/advisories/GHSA-g9qw-g6rv-3889"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-62528"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/taguette/PYSEC-2025-188.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/remram44/taguette"
  }, {
    "type" : "WEB",
    "url" : "https://gitlab.com/remram44/taguette/-/issues/330"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-20T20:27:01Z",
    "nvd_published_at" : "2025-10-20T20:15:37Z"
  }
}