CVE-2026-44961

Summary

CVECVE-2026-44961
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-23 17:17:00 UTC
Updated2026-06-23 18:17:52 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 0 NONE from [email protected]

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

Problem Types: CWE-287 | CWE-287 CWE-287 Improper Authentication - Generic


VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary0NONECVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
3.0CNADECLARED0NONECVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Revive Adserver affected 6.0.6 semver Not specified

References

ReferenceSourceLinkTags
hackerone.com/reports/3680090 [email protected] hackerone.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: barcrange (3l4) (en)

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