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TI-2026-23184 Aliases CVE-2026-29038GHSA-8whx-v8qq-pq64

changedetection.io: Reflected XSS in RSS Tag Error Response

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00319 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed changedetection.io (dgtlmoon): 0.54.4changedetection.io (PyPI): 0.54.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
dgtlmoonchangedetection.iobefore 0.54.40.54.4Patch availableCNA
—changedetection.io (PyPI)before 0.54.40.54.4Patch availableGHSA-8whx-v8qq-pq64
  • changedetection.io Vendordgtlmoon Affected before 0.54.4 Fixed in 0.54.4 Patch available CNA
  • changedetection.io (PyPI) Vendor— Affected before 0.54.4 Fixed in 0.54.4 Patch available GHSA-8whx-v8qq-pq64

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webtechnologies:changedetection:*:*:*:*:*:*:*:*before 0.54.4Vulnerabledgtlmoon
  • cpe:2.3:a:webtechnologies:changedetection:*:*:*:*:*:*:*:* Versions before 0.54.4 Vulnerable ·dgtlmoon

Remediation

  • Fix · CNA changedetection.io (dgtlmoon) Fixed in 0.54.4
  • Fix · GHSA-8whx-v8qq-pq64 changedetection.io (PyPI) Fixed in 0.54.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29038
  2. 2026-10-03 Alias added: GHSA-8whx-v8qq-pq64

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • TI-2026-27619 changedetection.io has an Authentication Bypass via Decorator Ordering CVSS 3.1CRITICAL 9.8
  • TI-2026-23210 changedetection.io: Zip Slip vulnerability in the backup restore functionality CVSS 4.0HIGH 8.8
  • TI-2026-22073 changedetection.io Vulnerable to Server-Side Request Forgery (SSRF) via Watch URLs CVSS 3.1HIGH 8.6
  • TI-2026-26322 Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters CVSS 4.0HIGH 8.3
  • TI-2026-23185 changedetection.io: XPath - Arbitrary File Read via unparsed-text() CVSS 4.0HIGH 8.8
  • TI-2026-31955 changedetection.io: Arbitrary Local File Read via crafted backup restore CVSS 3.1HIGH 7.5
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences