CVE-2020-5502

Name: CVE-2020-5502
Creator: NVD / NIST
Published: 2020-01-15T00:15:13.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2020-5502 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. phpBB 3.2.8 allows a CSRF attack that can approve pending group memberships.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

phpBB 3.2.8 allows a CSRF attack that can approve pending group memberships.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.43%

34.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Phpbb	Phpbb	3.2.8

References

https://blog.phpbb.com/category/security/Vendor Advisory
https://www.phpbb.com/community/viewtopic.php?f=14&t=2534536Vendor Advisory
https://blog.phpbb.com/category/security/Vendor Advisory
https://www.phpbb.com/community/viewtopic.php?f=14&t=2534536Vendor Advisory

Timeline

Published: Jan 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5502?

phpBB 3.2.8 allows a CSRF attack that can approve pending group memberships.

How severe is CVE-2020-5502?

CVE-2020-5502 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5502?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5502?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST