---
id: CVE-2019-1020005
aliases:
  - GHSA-mfv8-q39f-mgfg
  - PYSEC-2019-25
title: Cross-site Scripting in invenio-communities
summary: Cross-site Scripting in invenio-communities
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
vendor: invenio-communities
product: invenio-communities
ecosystem: pip
affected:
  - invenio-communities < 1.0.0a20
patched:
  - invenio-communities 1.0.0a20
published: '2019-07-16'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:47:54.688822966Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-mfv8-q39f-mgfg'
references:
  - url: >-
      https://github.com/inveniosoftware/invenio-communities/security/advisories/GHSA-mfv8-q39f-mgfg
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2019-1020005'
  - url: >-
      https://github.com/inveniosoftware/invenio-communities/commit/505da72c5acd7dfbd4148f884c73c9c3372b76f4
  - url: 'https://github.com/advisories/GHSA-mfv8-q39f-mgfg'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/invenio-communities/PYSEC-2019-25.yaml
tags:
  - osv
  - pip
epss: 0.00682
epssPercentile: 0.51047
ingestedAt: '2026-09-12T03:13:01.710Z'
---

## Overview

## Cross-Site Scripting (XSS) vulnerability in Jinja templates

### Impact
A Cross-Site Scripting (XSS) vulnerability was discovered in two Jinja templates in the Invenio-Communities module. The vulnerability allows a user to create a new community and include script element tags inside the description and page fields. 

### Patches
The problem has been patched in v1.0.0a20.

### For more information
If you have any questions or comments about this advisory:
* Email us at [info@inveniosoftware.org](mailto:info@inveniosoftware.org)

## Affected packages

- `invenio-communities < 1.0.0a20`

## Remediation

Upgrade to a patched release:

- `invenio-communities 1.0.0a20`