How severe is CVE-2025-9591?

CVE-2025-9591 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-9591 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9591?

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

Does CVE-2025-9591 have an EU (EUVD) identifier?

Yes. CVE-2025-9591 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26148.

When was CVE-2025-9591 published?

CVE-2025-9591 was published on 2025-08-28 and last updated on 2026-06-17.

CVE-2025-9591

CVE-2025-9591 is a low-severity vulnerability with a CVSS 3.x base score of 2.4. 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: Low (CVSS 3.x base score 2.4)
CVSS v2: 3.3
CVSS v4: 1.9
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26148
Weakness: CWE-79
Published: 2025-08-28
Last modified: 2026-06-17

Description

A security vulnerability has been detected in ZrLog up to 3.1.5. This vulnerability affects unknown code of the file /api/admin/template/config of the component Theme Configuration Form. Such manipulation of the argument footerLink leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-9591?: A security vulnerability has been detected in ZrLog up to 3.1.5. This vulnerability affects unknown code of the file /api/admin/template/config of the component Theme Configuration Form. Such manipulation of the argument footerLink leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-9591?: CVE-2025-9591 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-9591 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9591?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9591 have an EU (EUVD) identifier?: Yes. CVE-2025-9591 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26148.
When was CVE-2025-9591 published?: CVE-2025-9591 was published on 2025-08-28 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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