PatchSiren cyber security CVE debrief

CVE-2026-48613 phpBB CVE debrief

A SQL injection vulnerability was discovered in phpBB profile field migration, tracked as CVE-2026-48613. This vulnerability occurs due to improper handling of user-supplied profile field data during migration, allowing execution of arbitrary SQL queries. The vulnerability affects phpBB forums that were updated from versions prior to phpBB 3.3.8 and have not been updated to 3.3.11 or newer yet. The CVSS score for this vulnerability is 5.9, with a severity rating of MEDIUM.

Vendor: phpBB
Product: Unknown
CVSS: MEDIUM 5.9
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-12
Original CVE updated: 2026-06-12
Advisory published: 2026-06-12
Advisory updated: 2026-06-12

Who should care

Administrators and users of phpBB forums that were updated from versions prior to phpBB 3.3.8 and have not been updated to 3.3.11 or newer yet should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability is caused by improper handling of user-supplied profile field data during migration. This allows an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access or modification of sensitive data.

Defensive priority

MEDIUM

Recommended defensive actions

Update phpBB to version 3.3.11 or newer to fix the vulnerability.
Review and monitor phpBB forum logs for suspicious activity.

Evidence notes

The CVE record was published on June 12, 2026, at 04:17:11 GMT and modified on June 12, 2026, at 16:15:57 GMT. The vulnerability has a CVSS score of 5.9 and a severity rating of MEDIUM.

Official resources

CVE-2026-48613 was published on 2026-06-12T04:17:11.327Z.