CVE-2018-19274

Phpbb vulnerability

CVSS

7.2

EPSS

5.2%

EPSS pct

92th

Exploited

No known

Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code Execution through Object Injection by employing Phar deserialization when an attacker has access to the Admin Control Panel with founder permissions.

Affected vendor

Phpbb

Affected product

Phpbb

CVSS vector

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

Weakness type (CWE)

CWE-502 — Deserialization of Untrusted Data
CWE-1321 — Prototype Pollution

Published

2018-11-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2018-19274

Confirm whether Phpbb Phpbb is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-19274.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-19274

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-19274 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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