phpBB Cross-Site Request Forgery (CSRF)
The advisory, in context
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.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 3.1.7-PL1
Fixed in 3.1.7-PL1
36 explicitly affected versions
3.0.12, 3.0.12-RC1, 3.0.12-RC2, 3.0.12-RC3, 3.0.13, 3.0.13-PL1, 3.0.13-RC1, 3.0.14, 3.0.14-RC1, 3.1.0, 3.1.0-RC1, 3.1.0-RC2, 3.1.0-RC3, 3.1.0-RC4, 3.1.0-RC5, 3.1.0-RC6, 3.1.0-a1, 3.1.0-a2, 3.1.0-a3, 3.1.0-b1, 3.1.0-b2, 3.1.0-b3, 3.1.0-b4, 3.1.1, 3.1.2, 3.1.2-RC1, 3.1.3, 3.1.3-RC1, 3.1.3-RC2, 3.1.4, 3.1.4-RC1, 3.1.4-RC2, 3.1.5, 3.1.5-RC1, 3.1.6, 3.1.6-RC1
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.7-PL1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.12",
"3.0.12-RC1",
"3.0.12-RC2",
"3.0.12-RC3",
"3.0.13",
"3.0.13-PL1",
"3.0.13-RC1",
"3.0.14",
"3.0.14-RC1",
"3.1.0",
"3.1.0-RC1",
"3.1.0-RC2",
"3.1.0-RC3",
"3.1.0-RC4",
"3.1.0-RC5",
"3.1.0-RC6",
"3.1.0-a1",
"3.1.0-a2",
"3.1.0-a3",
"3.1.0-b1",
"3.1.0-b2",
"3.1.0-b3",
"3.1.0-b4",
"3.1.1",
"3.1.2",
"3.1.2-RC1",
"3.1.3",
"3.1.3-RC1",
"3.1.3-RC2",
"3.1.4",
"3.1.4-RC1",
"3.1.4-RC2",
"3.1.5",
"3.1.5-RC1",
"3.1.6",
"3.1.6-RC1"
]
}References
- https://nvd.nist.gov/vuln/detail/CVE-2019-16993
- https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789
- https://github.com/phpbb/phpbb-app
- 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