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.

INFO

Published Date :

Sept. 30, 2019, 12:15 p.m.

Last Modified :

Nov. 21, 2019, 1:34 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-16993 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Phpbb phpbb
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-16993.

URL Resource
https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html Third Party Advisory
https://www.phpbb.com/community/viewtopic.php?t=2352606 Vendor Advisory
https://www.phpbb.com/support/documents.php?mode=changelog&version=3#v317 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-16993 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-16993 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 21, 2019

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:* versions up to (excluding) 3.1.7-pl1 OR *cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:* versions up to (including) 3.1.7
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 07, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/10/msg00006.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 04, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789 No Types Assigned https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789 Patch, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.phpbb.com/community/viewtopic.php?t=2352606 No Types Assigned https://www.phpbb.com/community/viewtopic.php?t=2352606 Vendor Advisory
    Changed Reference Type https://www.phpbb.com/support/documents.php?mode=changelog&version=3#v317 No Types Assigned https://www.phpbb.com/support/documents.php?mode=changelog&version=3#v317 Vendor Advisory
    Added CWE CWE-352
    Added CPE Configuration OR *cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:* versions up to (excluding) 3.1.7-pl1
  • CVE Modified by [email protected]

    Oct. 01, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/09/msg00036.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-16993 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-16993 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.55 }} 0.09%

score

0.74514

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability