CVE-2020-8226

phpBB Server-Side Request Forgery Vulnerability

5.8 MediumFix available

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.97%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 5.8

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: CVE-2020-8226
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-610, CWE-918
Updated: 2026-11-02

CVE List No score

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: CVE-2020-8226
Weakness: CWE-610
Updated: 2026-11-02

EUVDEUVD-2022-4376 No score

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: EUVD-2022-4376
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jhm9-h84h-rw83 5.8

phpBB Server-Side Request Forgery Vulnerability

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: GHSA-jhm9-h84h-rw83
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Weakness: CWE-610, CWE-918
Updated: 2026-11-02

OSV 5.8

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: CVE-2020-8226
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Updated: 2026-11-02

OSVGHSA-jhm9-h84h-rw83 5.8

phpBB Server-Side Request Forgery Vulnerability

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: GHSA-jhm9-h84h-rw83
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Weakness: CWE-610, CWE-918
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-8226 5.8

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: UBUNTU-CVE-2020-8226
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Updated: 2026-11-02

OSVBIT-phpbb-2020-8226 No score

A vulnerability exists in phpBB <v3.2.10 and <v3.3.1 which allowed remote image dimensions check to be used to SSRF.

Record: BIT-phpbb-2020-8226
Updated: 2026-11-02

Affected products

phpbb

Affected packages

Affected packages
Package	Affected	Fixed
`phpbb/phpbb` Packagist	3.2.0 up to 3.2.10	3.2.10
`phpbb/phpbb` Packagist	3.3.0 up to 3.3.1	3.3.1
`phpbb` Bitnami	before 3.2.10, 3.3.0 up to 3.3.1	3.2.103.3.1
`phpbb/phpbb` Packagist	3.2.0 up to 3.2.10, plus listed versions 3.2.13.2.1-RC13.2.10-RC13.2.10-RC23.2.2 Show 16 moreShow less 3.2.2-RC13.2.33.2.3-RC13.2.3-RC23.2.43.2.4-RC13.2.53.2.5-RC13.2.63.2.6-RC13.2.73.2.7-RC13.2.83.2.8-RC13.2.93.2.9-RC1	3.2.10
`phpbb/phpbb` Packagist	3.3.0 up to 3.3.1, plus listed versions 3.3.1-RC1	3.3.1
`phpbb3` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 3.0.11-53.0.12-13.0.12-1ubuntu0.1~esm1	None known
`phpbb3` Ubuntu:16.04:LTS	All versions, plus listed versions 3.0.14-13.0.14-1ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-8226 is a medium vulnerability (CVSS 5.8) in Phpbb, published August 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 61st percentile. Fixed in phpbb/phpbb 3.2.10.

References

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