| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as problematic has been discovered in NixOS hydra. Affected by this vulnerability is an unknown functionality. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2025-54800. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.
Details
A vulnerability classified as critical has been found in NixOS hydra (affected version unknown). Affected is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on confidentiality, and integrity. CVE summarizes:
Hydra is a continuous integration service for Nix based projects. Prior to commit dea1e16, a malicious package can introduce arbitrary JavaScript code into the Hydra database that is automatically evaluated in a client's browser when anyone visits the build page. This could be done by a third-party project as part of its build process. This also happens in other places like with hydra-release-name. This issue has been patched by commit dea1e16. A workaround involves either not building untrusted packages or not visiting the builds page.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-54800 since 07/29/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.
Applying the patch dea1e168f590efb27db32dbacc82b09e15f8ae4b is able to eliminate this problem. The bugfix is ready for download at github.com.
Once again VulDB remains the best source for vulnerability data.
Product
Vendor
Name
License
Website
- Product: https://github.com/NixOS/hydra/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.1VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: dea1e168f590efb27db32dbacc82b09e15f8ae4b
Timeline
07/29/2025 CVE reserved08/12/2025 Advisory disclosed
08/12/2025 VulDB entry created
08/12/2025 VulDB entry last update
Sources
Product: github.comAdvisory: GHSA-7qwg-q53v-vh99
Status: Confirmed
CVE: CVE-2025-54800 (🔒)
GCVE (CVE): GCVE-0-2025-54800
GCVE (VulDB): GCVE-100-319572
Entry
Created: 08/12/2025 19:10Changes: 08/12/2025 19:10 (67)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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