CVE-2023-50717 — nocodb
MEDIUMCVE-2023-50717 is a medium-severity (CVSS 5.7) Cross-site Scripting (XSS) vulnerability in nocodb. A fix is available for nocodb — see the affected versions and patch details below.
NocoDB Allows Preview of File with Dangerous Content
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-2023-50717.
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
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
nocodbnpmDescription
Summary
Attacker can upload a html file with malicious content. If user tries to open that file in browser malicious scripts can be executed leading Stored XSS(Cross-Site Script) attack.
PoC
NocoDB was configured using the Release Binary Noco-macos-arm64, and nocodb version 0.202.9 (currently the latest version) was used.
binary hash infos: md5(164b727f287af56168bc16fba622d0b4) / sha256(43e8e97f4c5f5330613abe071a359f84e4514b7186f92954b678087c37b7832e)
<img width="665" alt="image" src="https://user-images.githubusercontent.com/86613161/287472673-aeb60a02-2080-429f-8583-9f130ab62779.png">
1. Run the binary to start the server and access the arbitrary table dashboard.
<img width="830" alt="image" src="https://user-images.githubusercontent.com/86613161/287472852-98b2286e-ad66-45bf-b503-63780619d775.png">Here, used the default Features table.
2. Click + in the table field header to add an attachment field.
<img width="1173" alt="image" src="https://user-images.githubusercontent.com/86613161/287472936-98a67213-a547-4e71-915c-d2a43300530b.png">
3. Click the Add File(s) button to select and upload files.
<img width="1132" alt="image" src="https://user-images.githubusercontent.com/86613161/287473041-0801ff39-e48c-4746-8518-be825bfd5533.png">
Here, test.html containing <script>alert(document.domain)</script> was uploaded.
4. Check the uploaded file path.
<img width="1163" alt="image" src="https://user-images.githubusercontent.com/86613161/287473337-b1c7c781-2fb5-4bd0-b464-dbd3d4158f04.png"
5. Access the uploaded file path.
<img width="1201" alt="image" src="https://user-images.githubusercontent.com/86613161/287473278-410f9228-58e3-4ee4-b111-70cdbffa9ed5.png">When the file path is accessed, the <script>alert(document.domain)</script> script statement contained in the file is executed and the server host appears in the alert message.
Impact
This allows remote attacker to execute JavaScript code in the context of the user accessing the vector. An attacker could have used this vulnerability to execute requests in the name of a logged-in user or potentially collect information about the attacked user by displaying a malicious form.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | nocodb | ≥ 0.202.6&&< 0.202.10 | 0.202.10npm install nocodb@0.202.10 |
Affected Products
nocodbnocodbDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nocodb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nocodb to 0.202.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-50717 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-2023-50717 in your dependencies?
Find it across npm, including transitive dependencies.