Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-19274

26
FAUCET Score

CVE-2018-19274 is a critical object injection vulnerability affecting phpBB versions prior to 3.2.4, specifically within its file_exists check. This flaw allows an attacker with founder-level Admin Control Panel access to achieve Remote Code Execution via Phar deserialization by providing an absolute path. With a CVSS score of 7.2 (High), the vulnerability has a low attack complexity and no user interaction required, leading to high impacts on confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.4CPE 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

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.20%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0520 is in the 91st percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: phpbb/phpbbFixed in: 3.2.4

Vendor Advisories (1)

composerGHSA-h3mr-q96r-37v4high

phpBB Remote Code Execution

May 13, 2022

References

blog.ripstech.com / 2018/phpbb3-phar-deserialization-to-remote-code-execution
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00029.html
Mailing ListThird Party Advisory
phpbb.com / community/viewtopic.php
PatchVendor Advisory