SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2026-44961

The XML‑RPC API addUser method has a validation bypass introduced in the fix for CVE‑2025‑55129.

NONE 0.0EPSS 0.41%

Does this matter?

Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.

Description

The XML‑RPC API addUser method has a validation bypass introduced in the fix for CVE‑2025‑55129. As a result, API users could create usernames that enabled impersonation or stored XSS attacks. Proper validation has been added where it was missing.

CVSS 3.0
0.0 NONECVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
EPSS
0.41% probability · 35th percentile
CISA KEV
Not listed
Weakness
CWE-287
Source
support@hackerone.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.