---
id: CVE-2021-41132
aliases:
  - GHSA-g67g-hvc3-xmvf
  - PYSEC-2021-372
  - PYSEC-2021-379
title: Inconsistent input sanitisation leads to XSS vectors
summary: Inconsistent input sanitisation leads to XSS vectors
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: omero-web
product: omero-web
ecosystem: pip
affected:
  - omero-web < 5.11.0
  - omero-figure < 4.4.1
patched:
  - omero-web 5.11.0
  - omero-figure 4.4.1
published: '2021-10-14'
updated: '2026-07-08'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-g67g-hvc3-xmvf'
references:
  - url: 'https://github.com/ome/omero-web/security/advisories/GHSA-g67g-hvc3-xmvf'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2021-41132'
  - url: >-
      https://github.com/ome/omero-web/commit/0168067accde5e635341b3c714b1d53ae92ba424
  - url: 'https://github.com/ome/omero-web'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/omero-figure/PYSEC-2021-379.yaml
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/omero-web/PYSEC-2021-372.yaml
  - url: 'https://www.openmicroscopy.org/security/advisories/2021-SV3'
tags:
  - osv
  - pip
epss: 0.01039
epssPercentile: 0.62479
ingestedAt: '2026-07-08T18:25:49.637Z'
---

## Overview

### Background

A variety of templates do not perform proper sanitization through HTML escaping.
Due to the lack of sanitization and use of ``jQuery.html()``, there are a whole host of XSS possibilities with specially crafted input to a variety of fields.

### Impact

OMERO.web before 5.11.0 and OMERO.figure before 4.4.1.

### Patches
Users should upgrade OMERO.web to 5.11.0 or higher and OMERO.figure to 4.4.1 or higher.

## Affected packages

- `omero-web < 5.11.0`
- `omero-figure < 4.4.1`

## Remediation

Upgrade to a patched release:

- `omero-web 5.11.0`
- `omero-figure 4.4.1`