CVE-2025-62780: changedetection.io is a free open source web page change detection tool

Q: How do I fix CVE-2025-62780?

changedetection: upgrade to 0.50.34. Exact commands for each OS are on this page.

Q: Is CVE-2025-62780 being exploited?

CVE-2025-62780 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-62780 affect?

CVE-2025-62780 affects changedetection. Severity is low (CVSS 3.5). changedetection.io is a free open source web page change detection tool. A Stored Cross Site Scripting is present in changedetection.io Watch update API in versions prior to 0.50.34 due to insufficient security checks. Two scenarios are pos

Q: How urgent is CVE-2025-62780?

Priority 27/100. Public exploit reference

Routine

LOW 3.5UPGRADE

CVE-2025-62780 is a low-severity flaw (CVSS 3.5) affecting changedetection. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

changedetection.io is a free open source web page change detection tool. A Stored Cross Site Scripting is present in changedetection.io Watch update API in versions prior to 0.50.34 due to insufficient security checks. Two scenarios are possible. In the first, an attacker can insert a new watch with an arbitrary URL which really points to a web page. Once the HTML content is retrieved, the attacker updates the URL with a JavaScript payload. In th

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-10
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: changedetection

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-10 22:15 UTCPublished CVE record published
2026-06-17 09:52 UTCUpdated Record last modified

changedetection changedetection UPGRADE

Affected: < 0.50.34

Fixed in: 0.50.34

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy changedetection || rpm -q changedetection || changedetection --version

2. UPGRADE to 0.50.34 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade changedetection

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade changedetection

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: ChangeDetection.io <= v0.50.33 - Stored XSS via Watch API

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-62780?

changedetection: upgrade to 0.50.34. Exact commands for each OS are on this page.

Is CVE-2025-62780 being exploited?

CVE-2025-62780 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-62780 affect?

CVE-2025-62780 affects changedetection. Severity is low (CVSS 3.5). changedetection.io is a free open source web page change detection tool. A Stored Cross Site Scripting is present in changedetection.io Watch update API in versions prior to 0.50.34 due to insufficient security checks. Two scenarios are pos

How urgent is CVE-2025-62780?

Priority 27/100. Public exploit reference

Related CVEs

CVE-2026-33981 MEDIUM 6.5 UPGRADE changedetection.io is a free open source web page change detection tool
CVE-2026-35490 CRITICAL 9.8 UPGRADE changedetection.io is a free open source web page change detection tool
CVE-2026-43891 HIGH 7.5 UPGRADE changedetection.io is a free open source web page change detection tool
CVE-2026-41895 HIGH 7.5 UPGRADE changedetection.io is a free open source web page change detection tool
CVE-2026-35000 MEDIUM 6.5 UPGRADE ChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser

References

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