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.
Published: 2026-06-23
Score: 0 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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References
Link Providers
https://hackerone.com/reports/3680090 cve-icon
History

Wed, 24 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
Title XML‑RPC addUser Validation Bypass Enables Impersonation and Stored XSS

Wed, 24 Jun 2026 08:30:00 +0000

Type Values Removed Values Added
Title XML‑RPC addUser Validation Bypass Enables Impersonation and Stored XSS

Wed, 24 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Title XML‑RPC API addUser Validation Bypass Enabling Impersonation and Stored XSS

Wed, 24 Jun 2026 02:15:00 +0000

Type Values Removed Values Added
Title XML‑RPC API addUser Validation Bypass Enabling Impersonation and Stored XSS

Tue, 23 Jun 2026 22:45:00 +0000

Type Values Removed Values Added
Title XML‑RPC API addUser Validation Bypass in Revive Adserver Allows User Impersonation and Stored XSS

Tue, 23 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Revive
Revive adserver
Vendors & Products Revive
Revive adserver

Tue, 23 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
Title XML‑RPC API addUser Validation Bypass in Revive Adserver Allows User Impersonation and Stored XSS

Tue, 23 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 23 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-287
References
Metrics cvssV3_0

{'score': 0, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N'}

Subscriptions

Revive Adserver
cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-06-23T17:44:07.348Z

Reserved: 2026-05-08T15:00:02.447Z

Link: CVE-2026-44961

cve-icon Vulnrichment

Updated: 2026-06-23T17:33:07.498Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T11:15:04Z

Weaknesses