How severe is CVE-2025-43926?

CVE-2025-43926 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-43926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43926?

CVE-2025-43926 affects Znuny. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-43926?

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

Does CVE-2025-43926 have an EU (EUVD) identifier?

Yes. CVE-2025-43926 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14013.

When was CVE-2025-43926 published?

CVE-2025-43926 was published on 2025-05-08 and last updated on 2026-06-17.

CVE-2025-43926

CVE-2025-43926 is a medium-severity vulnerability in Znuny with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14013
Weakness: CWE-79
Affected product: Znuny
Published: 2025-05-08
Last modified: 2026-06-17

Description

An issue was discovered in Znuny through 6.5.14 and 7.x through 7.1.6. Custom AJAX calls to the AgentPreferences UpdateAJAX subaction can be used to set user preferences with arbitrary keys. When fetching user data via GetUserData, these keys and values are retrieved and given as a whole to other function calls, which then might use these keys/values to affect permissions or other settings.

Frequently asked questions

What is CVE-2025-43926?: An issue was discovered in Znuny through 6.5.14 and 7.x through 7.1.6. Custom AJAX calls to the AgentPreferences UpdateAJAX subaction can be used to set user preferences with arbitrary keys. When fetching user data via GetUserData, these keys and values are retrieved and given as a whole to other function calls, which then might use these keys/values to affect permissions or other settings.
How severe is CVE-2025-43926?: CVE-2025-43926 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-43926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43926?: CVE-2025-43926 affects Znuny. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-43926?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43926 have an EU (EUVD) identifier?: Yes. CVE-2025-43926 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14013.
When was CVE-2025-43926 published?: CVE-2025-43926 was published on 2025-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:znuny:znuny:*:*:*:*:-:*:*:*

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