CVE-2026-87901 — HIGH (8.3)

Vulnerability Description

Improper sanitization in the registration module allows reflected Cross-Site Scripting.

CVSS Score

8.3

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

LOW

Related Weaknesses (CWE)

CWE-79

References

https://www.phpbb.com/community/viewtopic.php?t=2675305

FAQ

What is CVE-2026-87901?

CVE-2026-87901 is a vulnerability with a CVSS score of 8.3 (HIGH). Improper sanitization in the registration module allows reflected Cross-Site Scripting.

How severe is CVE-2026-87901?

CVE-2026-87901 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-87901?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.