CVE-2024-34061Public exploitNetwork attack vector

Script execution via unescaped notification URL error

Published May 2, 2024 · Updated Aug 2, 2024

Reflected XSS in changedetection.io before 0.45.22 allows remote attackers to execute JavaScript through notification_urls. The /settings form places an invalid notification URL in a validation error rendered from .jinja templates, whose filenames prevent Jinja2 autoescaping. Exploitation requires user interaction with crafted POST data; the script runs in that user's browser and can modify displayed content.

CVSS severity4.3
Medium
EPSS probability1.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in changedetection.io before 0.45.22 allows remote attackers to execute JavaScript through notification_urls. The /settings form places an invalid notification URL in a validation error rendered from .jinja templates, whose filenames prevent Jinja2 autoescaping. Exploitation requires user interaction with crafted POST data; the script runs in that user's browser and can modify displayed content.

The record

CVE
CVE-2024-34061
Published
May 2, 2024
Updated
Aug 2, 2024
Vendor
changedetection.io
Product
changedetection.io
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.45.22
  2. Affected versionversion=< 0.45.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

changedetection.io · changedetection.ioversion=0 <0.45.22; version=< 0.45.22

Published CVSS scores

4.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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