XAMPP WebDAV PHP Upload Authentication Bypass RCE

published 2025-08-30 14 mo ago modified 2026-06-16 4 mo ago also EUVD-2012-6608

cvss: 8.7; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 1; Metasploit

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.

Timeline

2012-01-14 First public exploit (Metasploit exploit/multi/http/webdav_upload_php)
2025-08-30 Published

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 14 mo ago (2025-09-02)

Exploit prediction

1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/multi/http/webdav_upload_php WebDAV PHP Upload metasploit exploit, excellent rank, 2012-01-14
raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/xampp_webdav_upload_php.rb referenced PoC, tagged "exploit" by a source, unverified
exploit-db.com https://www.exploit-db.com/exploits/18367 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.7	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
CNA	4.0	8.7	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

Affected products

Apache Friends XAMPP

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-306 Missing Authentication for Critical Functionality

References

raw.githubusercontent.com /rapid7/metasploit-framework/master/modules/exploits/windows/http/xampp_webdav_upload_php.rb
exploit
exploit-db.com /exploits/18367
exploit
apachefriends.org /index.html
product
vulncheck.com /advisories/xampp-webdav-php-upload-auth-bypass-rce
third-party-advisory

Sources

CVE List CVE-2012-10062
NVD CVE-2012-10062

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary