How severe is CVE-2026-44961?

CVE-2026-44961 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.

Is CVE-2026-44961 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44961?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-44961 have an EU (EUVD) identifier?

Yes. CVE-2026-44961 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38504.

When was CVE-2026-44961 published?

CVE-2026-44961 was published on 2026-06-23 and last updated on 2026-06-25.

CVE-2026-44961

CVE-2026-44961 is a none-severity vulnerability with a CVSS 3.x base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: None (CVSS 3.x base score 0.0)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38504
Weakness: CWE-287
Published: 2026-06-23
Last modified: 2026-06-25

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.

Frequently asked questions

What is CVE-2026-44961?: 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.
How severe is CVE-2026-44961?: CVE-2026-44961 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.
Is CVE-2026-44961 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-44961?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44961 have an EU (EUVD) identifier?: Yes. CVE-2026-44961 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38504.
When was CVE-2026-44961 published?: CVE-2026-44961 was published on 2026-06-23 and last updated on 2026-06-25.

References

https://hackerone.com/reports/3680090

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