---
title: "CVE-2023-5688: modoboa Cross-site Scripting vulnerability"
url: https://erroneo.us/security/cve/CVE-2023-5688/
description: "CVE-2023-5688 (modoboa (PyPI)): Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2."
type: vulnerability-record
section: "Security Digest"
date_published: 2023-10-20
date_modified: 2024-10-01
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-5688"
kev: false
cvss: 9.3
epss: 0.00655
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-5688: modoboa Cross-site Scripting vulnerability

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.7% , percentile 51: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 51% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes modoboa (PyPI) < 2.2.2, fixed in 2.2.2 . Check your lockfile, including transitive dependencies.

## What it is

Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2.

## Affected packages

- PyPI `modoboa` < 2.2.2 → fixed: 2.2.2

## Affected products (CVE record)

- modoboa modoboa/modoboa: unspecified < 2.2.2

## Severity

- @huntrdev CVSS 3.0: 9.8 `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.66% probability of exploitation activity in the next 30 days; percentile 51.

## Sources

- [GitHub Advisory GHSA-pqgm-9g82-wcm7](https://github.com/advisories/GHSA-pqgm-9g82-wcm7)
- [CVE.org record CVE-2023-5688](https://www.cve.org/CVERecord?id=CVE-2023-5688)
- [NVD entry CVE-2023-5688](https://nvd.nist.gov/vuln/detail/CVE-2023-5688)
- [huntr.com](https://huntr.com/bounties/0ceb10e4-952b-4ca4-baf8-5b6f12e3a8a7)
- [github.com](https://github.com/modoboa/modoboa/commit/d33d3cd2d11dbfebd8162c46e2c2a9873919a967)
- [github.com](https://github.com/pypa/advisory-database/tree/main/vulns/modoboa/PYSEC-2023-215.yaml)

---
Source page: https://erroneo.us/security/cve/CVE-2023-5688/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt