CVE-2019-16993 phpBB Cross-Site Request Forgery (CSRF)
Attackers can perform CSRF attacks on the BBCode admin page if they steal an administrator's session ID, potentially leading to unauthorized administrative actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-16993?
CVE-2019-16993 is a high-severity vulnerability in Debian Debian Linux, published on 30 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In phpBB before 3.1.7-PL1, includes/acp/acp_bbcodes.php has improper verification of a CSRF token on the BBCode page in the Administration Control Panel. An actual CSRF attack is possible if an attacker also manages to retrieve the session id of a reauthenticated administrator prior to targeting them.
Weakness: CWE-352
Which versions are affected by CVE-2019-16993?
2 open source packages ship an affected version, including phpbb/phpbb. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
phpbb/phpbb Packagist | All versions | 3.1.7-PL1 |
phpbb/phpbb Packagist | All versions | 3.1.7-PL1 |
Products include Debian Debian Linux, Phpbb Phpbb.
How do I fix CVE-2019-16993?
Upgrade phpbb/phpbb to 3.1.7-PL1 or later.
Is CVE-2019-16993 being exploited?
There is no known exploitation of CVE-2019-16993 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as GHSA-vj3x-vfm4-hvxc, UBUNTU-CVE-2019-16993.