---
id: CVE-2026-58144
title: Cotonti Siena 0.9.26 Stored XSS via PFS Module ntitle Parameter
summary: >-
  Cotonti Siena 0.9.26 and earlier contains a stored cross-site scripting
  vulnerability that allows authenticated users with PFS access to inject
  arbitrary script payloads by supplying malicious HTML in the ntitle parameter
  processed throu…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: Cotonti
product: Cotonti
affected:
  - Cotonti <= 0.9.26
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-10T13:40:26.781834Z'
exploitAvailable: true
published: '2026-07-09'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T15:20:07.215Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-58144'
references:
  - url: 'https://gist.github.com/sermikr0/75686815e441c07462cfdea2fed5d305'
    label: Researcher Disclosure
tags:
  - cve.org
  - exploit-available
epss: 0.00226
epssPercentile: 0.12042
ingestedAt: '2026-10-01T15:48:17.863Z'
---

## Overview

Cotonti Siena 0.9.26 and earlier contains a stored cross-site scripting vulnerability that allows authenticated users with PFS access to inject arbitrary script payloads by supplying malicious HTML in the ntitle parameter processed through the TXT filter in pfs.main.php. Attackers can create a folder with a crafted title containing script tags that are stored unescaped in the database and execute in the browser of any user who views the folder listing, including administrators.

## Affected

- `Cotonti <= 0.9.26`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.