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CVE-2019-16993

25
FAUCET Score

CVE-2019-16993 is a Cross-Site Request Forgery (CSRF) vulnerability in phpBB versions prior to 3.1.7-PL1, specifically affecting the BBCode page within the Administration Control Panel. This high-severity flaw (CVSS 8.8) allows an attacker to execute arbitrary actions if they can obtain an administrator's reauthenticated session ID. While the attack complexity is low, successful exploitation could lead to high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.7CPE matchmatch criteria
cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 55th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: phpbb/phpbbFixed in: 3.1.7-PL1
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-vj3x-vfm4-hvxchigh

phpBB Cross-Site Request Forgery (CSRF)

May 24, 2022

References

github.com / phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00036.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00006.html
Third Party Advisory
phpbb.com / community/viewtopic.php
Vendor Advisory
phpbb.com / support/documents.php
Vendor Advisory