GHSA-mgr9-6c2j-jxrq
Pterodactyl has a Reflected XSS vulnerability in “Create New Database Host”
GHSA-mgr9-6c2j-jxrq is a low vulnerability (CVSS 2.0) in pterodactyl/panel, published December 30, 2025. No source lists public exploit code. Fixed in pterodactyl/panel 1.12.0.
- Severity
- 2.0 LowCVSS 4.0, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.12.0pterodactyl/panel +1 more
Description
[!NOTE] Message from the Pterodactyl team:
The Pterodactyl team has evaluated this as a minor security issue but does not consider it something that should be assigned a CVE, nor does it require active patching by vulnerable systems.
This issue is entirely self-inflicted and requires an administrative user paste an obviously incorrect value into a database host field, submit it, and run into the XSS when the error message is rendered. However, we have determined that this fix is good security hygiene and may prevent issues in other areas not yet discovered.
Summary
When an administrative user creates a new database host they are prompted to provide a Host value which is expected to be a domain or IP address. When an invalid value is encountered and passed back to gethostaddr and/or directly to the MySQL connection tooling, an error is returned. This error is then passed back along to the front-end, but was not properly sanitized when rendered.
Therefore it is possible for an admin to knowingly paste a malicious payload such as <script>prompt(document.domain)</script> into the Host field and XSS themselves.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pterodactyl/panelPackagist | before 1.12.0 | 1.12.0 |
pterodactyl/panelPackagist | before 1.12.0, plus listed versions v0.1.0-betav0.1.1-betav0.1.2-betav0.2.0-betav0.3.0-beta Show 45 moreShow lessv0.4.0-betav0.4.1-betav0.5.0v0.5.0-rc.1v0.5.0-rc.2v0.5.1v0.5.2v0.5.3v0.5.4v0.5.5v0.5.6v0.5.7v0.6.0v0.6.0-beta.1v0.6.0-beta.2v0.6.0-beta.2.1v0.6.0-rc.1v0.6.1v0.6.2v0.6.3v0.6.4v0.7.0v0.7.0-beta.1v0.7.0-beta.2v0.7.0-beta.3v0.7.0-beta.4v0.7.0-rc.1v0.7.0-rc.2v0.7.1v0.7.10v0.7.11v0.7.12v0.7.13v0.7.14v0.7.15v0.7.16v0.7.17v0.7.18v0.7.19v0.7.2v0.7.3v0.7.4v0.7.5v0.7.6v0.7.7 | 1.12.0 |
What each source reports
GitHub Advisories Score used
Pterodactyl has a Reflected XSS vulnerability in “Create New Database Host”
[!NOTE] Message from the Pterodactyl team:
The Pterodactyl team has evaluated this as a minor security issue but does not consider it something that should be assigned a CVE, nor does it require active patching by vulnerable systems.
This issue is entirely self-inflicted and requires an administrative user paste an obviously incorrect value into a database host field, submit it, and run into the XSS when the error message is rendered. However, we have determined that this fix is good security hygiene and may prevent issues in other areas not yet discovered.
Summary
When an administrative user creates a new database host they are prompted to provide a Host value which is expected to be a domain or IP address. When an invalid value is encountered and passed back to gethostaddr and/or directly to the MySQL connection tooling, an error is returned. This error is then passed back along to the front-end, but was not properly sanitized when rendered.
Therefore it is possible for an admin to knowingly paste a malicious payload such as <script>prompt(document.domain)</script> into the Host field and XSS themselves.
- Record
GHSA-mgr9-6c2j-jxrq- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Pterodactyl has a Reflected XSS vulnerability in “Create New Database Host”
[!NOTE] Message from the Pterodactyl team:
The Pterodactyl team has evaluated this as a minor security issue but does not consider it something that should be assigned a CVE, nor does it require active patching by vulnerable systems.
This issue is entirely self-inflicted and requires an administrative user paste an obviously incorrect value into a database host field, submit it, and run into the XSS when the error message is rendered. However, we have determined that this fix is good security hygiene and may prevent issues in other areas not yet discovered.
Summary
When an administrative user creates a new database host they are prompted to provide a Host value which is expected to be a domain or IP address. When an invalid value is encountered and passed back to gethostaddr and/or directly to the MySQL connection tooling, an error is returned. This error is then passed back along to the front-end, but was not properly sanitized when rendered.
Therefore it is possible for an admin to knowingly paste a malicious payload such as <script>prompt(document.domain)</script> into the Host field and XSS themselves.
- Record
GHSA-mgr9-6c2j-jxrq- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P - Weakness
- CWE-79
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
Left out here: 68 versions. The JSON record has them.