CVE-2026-87901
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
- Record
CVE-2026-87901- CVSS 3.0
- 8.3 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-109101
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
- Record
EUVD-2026-109101- CVSS 3.0
- 8.3 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jf28-395j-fvfc
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
- Record
GHSA-jf28-395j-fvfc- CVSS 3.0
- 8.3 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Improper sanitization in the registration module allows reflected Cross-Site Scripting.
- Record
CVE-2026-87901- CVSS 3.0
- 8.3 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-87901 is a high vulnerability (CVSS 8.3) in Phpbb, published October 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.