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No exploitation reportedFix available

CVE-2018-19274

No exploitation reported by the sources we read.

  • Published2018-11-17
  • WeaknessCWE-1321 · CWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2018-11-1713:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-19274?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-19274?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
Phpbb
BranchAffectedFixed in
3.2< 3.2.43.2.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • phpbb3Ubuntu:Pro:14.04:LTSall versions · fixed in 3.0.12-1ubuntu0.1~esm1
  • phpbb3Ubuntu:16.04:LTSall versions · no fixed version listed
  • phpbb3Debian:8all versions · fixed in 3.0.12-5+deb8u2

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.17.2read 2026-10-23
  • NVDCVSS 2.06.5read 2026-10-23
  • NVDweakness (CWE)CWE-1321, CWE-502read 2026-10-23
  • FIRST EPSSEPSS score5.2 %2026-11-03
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2024-04-24

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2018-11-17
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-h3mr-q96r-37v4

Frequently asked questions

What is CVE-2018-19274?

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.

Is CVE-2018-19274 actively exploited?

Active exploitation of CVE-2018-19274 has not been confirmed. Its EPSS score was 5.2% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-19274?

CVE-2018-19274 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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