changedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, there is a reflected cross-site scripting (XSS) vulnerability identified in the /rss/tag/ endpoint of changedetection.io. The tag_uuid path parameter is reflected directly in the HTTP response body without HTML escaping.
Since Flask returns text/html by default for plain string responses, the browser parses and executes injected JavaScript. This issue has been patched in version 0.54.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/dgtlmoon/changedetection.io/commit/ec7d56f85d1e9690fca7cb471…
security-advisories@github.com
https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4
security-advisories@github.com
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-8whx-v8…
security-advisories@github.com