CVE-2026-87901
phpBB: Improper sanitization in the registration module allows reflected Cross-Site Scripting.
phpBB phpBB
CVSS
8.3HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version yet
What fixes it
No source in this snapshot names a fixed version.
Description
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
Text from CVE List
Affected versions 1
- phpBBaffected: 3.3.0 through 3.3.18CVE List