Vulnerability CVE-2019-16993


Published: 2019-09-30

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.

Type:

CWE-352

(Cross-Site Request Forgery (CSRF))

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Phpbb -> Phpbb 

 References:
https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789
https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html
https://www.phpbb.com/community/viewtopic.php?t=2352606
https://www.phpbb.com/support/documents.php?mode=changelog&version=3#v317

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