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  3. CVE-2023-23752
Exploited in the wildServers & business softwareWork IT

CVE-2023-23752 Joomla! Joomla!: login or permission bypass

In plain words: A door that should be locked is not: part of the system can be reached without a valid login or permission. The attacker gets in as a user or administrator without knowing a password.

Confirmed exploited by CISA on · US federal patch deadline Jan 29, 2024

What to do

  1. Install Joomla!'s security update for Joomla!. If no update exists, follow the vendor's workaround or stop using the product until one ships.
  2. Keep a list of every internet-facing server you run so nothing is forgotten.
  3. Patch anything in this catalog first, ahead of normal patch cycles.
  4. Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.

Read Joomla!'s advisory ↗

Who is affected

Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.

The details

Official name
Joomla! Improper Access Control Vulnerability
Product
Joomla! Joomla!
CISA description
Joomla! contains an improper access control vulnerability that allows unauthorized access to webservice endpoints.
Type of flaw
Login or permission bypass (CWE-284)
Confirmed exploited
Jan 8, 2024
US federal patch deadline
Jan 29, 2024

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Answering about CVE-2023-23752 ·

Questions about CVE-2023-23752

Is CVE-2023-23752 being exploited?

Yes. CISA added CVE-2023-23752 to its Known Exploited Vulnerabilities catalog on Jan 8, 2024, which means there is reliable evidence of real-world attacks.

How do I fix CVE-2023-23752?

Install Joomla!'s security update for Joomla!. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.

Am I affected by CVE-2023-23752?

Only if you use Joomla! Joomla!. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.

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