CVE-2026-25527Disclosure(webtechnologies / changedetection)

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static/<group>/<filename>` 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • changedetection

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-02-19); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Products
changedetection

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-02-19: 1Mentions · 2026-06-08: 1Technical Details · 2026-02-19: 1Technical Details · 2026-06-08: 102-1906-08
Signal classification1 categories
Disclosure
2100.0%
Referenced assets3 URLs
Full discourse2 posts
  • pdnuclei-bot@pdnuclei_bot
    Disclosure

    🚨 CVE-2026-25527 - medium 🚨 http://changedetection.io &lt;= 0.52.9 - Unauthenticated Path Traversal &gt; http://changedetection.io &lt;= 0.53.9 contains a path traversal caused by improper validation ... 👾 https://cloud.projectdiscovery.io/library/CVE-2026-25527 @pdnuclei #NucleiTemplates #cve

    Post summary

    The tweet announces CVE‑2026‑25527, an unauthenticated path traversal vulnerability in changedetection.io (versions <= 0.52.9/0.53.9), and provides a link to a detection template in ProjectDiscovery’s library.

    00011105
    953 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-25527 http://changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static/&lt;group&gt;/&lt;filename&gt;` route accepts `group=".."`, whi… https://www.cve.org/CVERecord?id=CVE-2026-25527

    Post summary

    The post discloses a path‑traversal vulnerability in changedetection.io prior to version 0.53.2, noting that the /static route incorrectly accepts group="..".

    0000062
    56.4K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appwebtechnologieschangedetection---

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