CVE-2024-32651
CriticalPublic exploitchangedetection.io has a Server Side Template Injection using Jinja2 which allows Remote Command Execution
Published Oct 15, 2024 · Updated Sep 10, 2026 · Also known as GHSA-4r7v-whpg-8rx3, PYSEC-2026-310
Key Facts
Patch immediately- CVE-2024-32651 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting changedetection-io (pypi), changedetection.io (pypi).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- Fixed versions are available, including changedetection-io 0.45.21, changedetection.io 0.45.21.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-32651 brief as a PDF
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Description
changedetection.io is an open source web page change detection, website watcher, restock monitor and notification service. There is a Server Side Template Injection (SSTI) in Jinja2 that allows Remote Command Execution on the server host. Attackers can run any system command without any restriction and they could use a reverse shell. The impact is critical as the attacker can completely takeover the server machine. This can be reduced if changedetection is behind a login page, but this isn't required by the application (not by default and not enforced).
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| changedetection-iopypi | See advisory | 0.45.21 |
| changedetection.iopypi | >= <= 0.45.20 | 0.45.21 |
Patched Releases
changedetection-io
0.45.21
changedetection.io
0.45.21
Timeline
Publicly disclosed
Oct 15, 2024
Last updated
Sep 10, 2026
Weakness Type
- CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32651.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2024-32651
- articlehttps://blog.hacktivesecurity.com/index.php/2024/05/08/cve-2024-32651-server-side-template-injection-changedetection-io
- articlehttps://github.com/dgtlmoon/changedetection.io/releases/tag/0.45.21
FAQ
Common Questions.
changedetection.io is an open source web page change detection, website watcher, restock monitor and notification service.
Affected: changedetection-io (pypi); changedetection.io (pypi) versions >= <= 0.45.20. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including changedetection-io 0.45.21, changedetection.io 0.45.21.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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