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Medium, CVSS 4.8amended

Stored cross site scripting in changedetection.io

CVE-2023-24769GHSA-68wj-c2jw-5pp9

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (changedetection-io 0.40.2), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
4.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N · score source
EPSS
  • CVE-2023-24769: 0.64% estimated exploitation activity in the next 30 days; percentile 50.57 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Changedetection.io before 0.40.2 was discovered to contain a stored cross-site scripting (XSS) vulnerability in the main page. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the URL parameter under the "Add a new change detection watch" function.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-68wj-c2jw-5pp9

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-68wj-c2jw-5pp9

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2023-24769

Advisory: Stored cross site scripting in changedetection.io
IDs: CVE-2023-24769, GHSA-68wj-c2jw-5pp9
Record: https://patchnext.com/advisories/cve-2023-24769 (revision 3, source checked 26 Oct 2026, 13:31 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: changedetection-io 0.40.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI changedetection-io: affected < 0.40.2; fixed in 0.40.2

## Suggested inspection (read-only)
- `python -m pip show changedetection-io`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on changedetection-io.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-68wj-c2jw-5pp9 (OSV record GHSA-68wj-c2jw-5pp9 lists affected ranges: PyPI changedetection-io >=0 <0.40.2 (fixed))
- Verified: https://github.com/advisories/GHSA-68wj-c2jw-5pp9 (GitHub-reviewed advisory GHSA-68wj-c2jw-5pp9 lists affected ranges: PyPI changedetection-io >=0 <0.40.2)

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