CVE-2024-47836 is a low-severity (CVSS 3.5) Deserialization of Untrusted Data vulnerability in admidio/admidio. A fix is available for admidio/admidio — see the affected versions and patch details below.
Admidio vulnerable to HTML Injection In The Messages Section
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-47836.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
admidio/admidioReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Summary
An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the server.
PoC
- Go to https://www.admidio.org/demo_en/adm_program/modules/messages/messages.php
- Click on Send Private Message
- In the
Messagefield, enter the following payloadTesting<br><h1>HTML</h1><br><h2>Injection</h2>
- Send the message
- Open the message again
Impact
- Data Theft: Stealing sensitive information like cookies, session tokens, and user credentials.
- Session Hijacking: Gaining unauthorized access to user accounts.
- Phishing: Tricking users into revealing sensitive information.
- Website Defacement: Altering the appearance or content of the website.
- Malware Distribution: Spreading malware to users' devices.
- Denial of Service (DoS): Overloading the server with malicious requests.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | admidio/admidio | all versions | 4.3.12composer require admidio/admidio:^4.3.12 |
Affected Products
admidioadmidioDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for admidio/admidio, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update admidio/admidio to 4.3.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-47836 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
Frequently Asked Questions
Is CVE-2024-47836 in your dependencies?
Find it across Packagist, including transitive dependencies.