HIGH 7.5
PYSEC-2026-29
Details
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(...).
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Affected packages
PyPI / changedetection-io
Introduced in:
0 Fixed in: 0.54.10 Fix
pip install --upgrade 'changedetection-io>=0.54.10'