CVE-2026-41895 PUBLISHED

changedetection.io: XXE vulnerability in the changedetection.io project

Assigner: GitHub_M
Reserved: 22.04.2026 Published: 12.05.2026 Updated: 12.05.2026

changedetection.io is a free open source web page change detection tool. In 0.54.9 and earlier, xpath_filter() switches to XML mode for XML/RSS content and creates etree.XMLParser(strip_cdata=False) without explicitly disabling external entity resolution, external DTD loading, or network-backed entity lookup. The helper then parses untrusted XML bytes directly with etree.fromstring(...).

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 8.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	dgtlmoon
Product	changedetection.io
Versions	Version <= 0.54.9 is affected

References

https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-v7cp-2cx9-x793

Problem Types

CWE-611: Improper Restriction of XML External Entity Reference CWE