Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code…
Priority MEDIUM 40CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
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.
Why it matters now
EPSS 0.05201 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed phpbb/phpbb (Packagist): 3.2.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | phpbb/phpbb (Packagist) | before 3.2.4 | 3.2.4 | Patch available | GHSA-h3mr-q96r-37v4 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- phpbb/phpbb (Packagist) Vendor— Affected before 3.2.4 Fixed in 3.2.4 Patch available GHSA-h3mr-q96r-37v4
Remediation
- Fix · GHSA-h3mr-q96r-37v4 phpbb/phpbb (Packagist) Fixed in 3.2.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-19274
- 2026-10-03 Alias added: GHSA-h3mr-q96r-37v4
References
Advisory 2
Sources
- CVE-2018-19274 · CVE Program
- CVE-2018-19274 · NVD
- FIRST EPSS
- GHSA-h3mr-q96r-37v4 · GitHub Advisory Database · CC BY 4.0
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