XAMPP WebDAV PHP Upload Authentication Bypass RCE
Published Aug 30, 2025
8.7
HIGHCVSS 4.0
EPSS 1.31%
Description
A vulnerability in XAMPP, developed by Apache Friends, version 1.7.3's default WebDAV configuration allows remote authenticated attackers to upload and execute arbitrary PHP code. The WebDAV service, accessible via /webdav/, accepts HTTP PUT requests using default credentials. This permits attackers to upload a malicious PHP payload and trigger its execution via a subsequent GET request, resulting in remote code execution on the server.
Affected products
-
- Version 0StatusaffectedConstraints<=1.7.3
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apache Friends | Xampp | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Sep 2, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.31% (0.01315) | 69.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.21% (0.01209) | 64.30th | v5 (v2026.06.15) |
| May 16, 2026 | 61.77% (0.61765) | 98.35th | v4 (v2025.03.14) |
| Apr 23, 2026 | 57.98% (0.57981) | 98.19th | v4 (v2025.03.14) |
| Apr 21, 2026 | 53.85% (0.53851) | 98.00th | v4 (v2025.03.14) |
| Jan 26, 2026 | 50.16% (0.50157) | 97.74th | v4 (v2025.03.14) |
| Dec 30, 2025 | 59.04% (0.59035) | 98.13th | v4 (v2025.03.14) |
| Nov 6, 2025 | 53.87% (0.53867) | 97.87th | v4 (v2025.03.14) |
| Oct 8, 2025 | 50.75% (0.50747) | 97.69th | v4 (v2025.03.14) |
| Aug 31, 2025 | 0.34% (0.00339) | 55.97th | v4 (v2025.03.14) |
References (4)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/xampp_webdav_upload_php.rb exploit
- https://www.apachefriends.org/index.html product
- https://www.exploit-db.com/exploits/18367 exploit
- https://www.vulncheck.com/advisories/xampp-webdav-php-upload-auth-bypass-rce third-party-advisory
Change history (0)
No recorded changes yet.