Vulnerability Details : CVE-2019-16993
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.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2019-16993
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16993
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16993
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-16993
-
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-16993
-
https://www.phpbb.com/community/viewtopic.php?t=2352606
phpBB • phpBB 3.1.7-PL1 ReleaseVendor Advisory
-
https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html
[SECURITY] [DLA 1942-1] phpbb3 security updateMailing List;Third Party Advisory
-
https://www.phpbb.com/support/documents.php?mode=changelog&version=3#v317
phpBB • SupportVendor Advisory
-
https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789
[ticket/security-188] Check form key in acp_bbcodes · phpbb/phpbb@18abef7 · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html
[SECURITY] [DLA 1942-2] phpbb3 regression updateThird Party Advisory
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