# CVE-2003-0038: PYSEC-2026-657 - Mailman Cross-site scripting (XSS) vulnerability

Source: https://junglewise.ai/threats/cve-2003-0038-mailman-cross-site-scripting-xss-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2003-0038 · Severity: info · Published 2026-07-02

Mailman Cross-site scripting (XSS) vulnerability

Technologies: [mailman (PyPI)](https://junglewise.ai/threats/technologies/mailman). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2003-0038 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2003-0038 being exploited in the wild.

**How severe is CVE-2003-0038?** Informational severity, published 2 July 2026.

**Which products and versions are affected?** mailman (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.1.

**Is there a fix for CVE-2003-0038?** Yes. mailman (PyPI): upgrade to 2.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2003-0038?** Check whether you run mailman (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- mailman (PyPI): upgrade to 2.1.1 or later

  ```sh
  pip install "mailman>=2.1.1"
  ```


## Affected products

- mailman (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.1

## Identifiers

- CVE-2003-0038
- GHSA-82rm-28q9-435p
- PYSEC-2026-657

## Related threats

- [PYSEC-2026-659 - mailman Cross-site scripting (XSS) vulnerability](https://junglewise.ai/threats/cve-2004-1177-mailman-cross-site-scripting-xss-vulnerability)
- [PYSEC-2026-658 - Mailman Sensitive Information Disclosure](https://junglewise.ai/threats/cve-2004-0412-mailman-sensitive-information-disclosure)
- [PYSEC-2026-660 - Cross Site Request Forgery in mailman](https://junglewise.ai/threats/cve-2021-44227-cross-site-request-forgery-in-mailman)
- [PYSEC-2026-661 - Moderate severity vulnerability that affects mailman](https://junglewise.ai/threats/cve-2018-13796-moderate-severity-vulnerability-that-affects-mailman)
- [Mailman Core timing attack on REST API password](https://junglewise.ai/threats/cve-2021-34337-mailman-core-timing-attack-on-rest-api-password)