---
cve: "CVE-2026-25527"
severity: "MEDIUM"
cvss: 5.3
epss: "0.9%"
vendor: "dgtlmoon"
kev: false
exploited: false
published: "2026-02-19 15:16:11"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:12:40+02:00"
---

# CVE-2026-25527

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static//` route accepts `group=".."`, which causes `send_from_directory("static/..", filename)` to execute. This moves the base directory up to `/app/changedetectionio`, enabling unauthenticated local file read of application source files (e.g., `flask_app.py`). Version 0.53.2 fixes the issue.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 86e5184cef9ccd2d04f53fe2f0ec52739b7357fe (Commit)
- 9d38b4517364831889b5b0d7b3465fd060403fd4 (Commit)

## Referenzen

- <https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-9jj8-v89v-xjvw>
- <https://github.com/dgtlmoon/changedetection.io/commit/9d38b4517364831889b5b0d7b3465fd060403fd4>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-25527) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_