PatchTheCVECVE-2026-38526: An authenticated arbitrary file upload vulnerability in the /admin/tinymce/upload endpoint of Webkul Krayin CR
CVE-2026-38526 is a critical-severity flaw (CVSS 9.9) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An authenticated arbitrary file upload vulnerability in the /admin/tinymce/upload endpoint of Webkul Krayin CRM v2.2.x allows attackers to execute arbitrary code via uploading a crafted PHP file.
Why this priority
- Critical severity
- EPSS top 10%: very likely to be exploited
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.9 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 3.8% (top 10%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2026-04-14 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: NathanHimself/CVE-2026-38526-PoC (7 stars)
- GitHub PoC: CerberusMrXi/KrayinCRM-RCE-Exploit-CVE-2026-38526 (3 stars)
- GitHub PoC: pawpic/CVE-2026-38526-POC (1 stars)
- Write-up: github.com/TREXNEGRO/Security-Advisories/blob/main/CVE-2026-38526/poc.md
- Write-up: github.com/TREXNEGRO/Security-Advisories/tree/main/CVE-2026-38526
- Exploit-DB: Krayin CRM v2.2.x - Authenticated Remote Code Execution
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-38526?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-38526 being exploited?
CVE-2026-38526 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-38526 affect?
CVE-2026-38526 affects affected software. Severity is critical (CVSS 9.9). An authenticated arbitrary file upload vulnerability in the /admin/tinymce/upload endpoint of Webkul Krayin CRM v2.2.x allows attackers to execute arbitrary code via uploading a crafted PHP file.
How urgent is CVE-2026-38526?
Priority 62/100. Critical severity; EPSS top 10%: very likely to be exploited; Public exploit reference