How severe is CVE-2026-25558?

CVE-2026-25558 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-25558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-25558?

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

Does CVE-2026-25558 have an EU (EUVD) identifier?

Yes. CVE-2026-25558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35071.

When was CVE-2026-25558 published?

CVE-2026-25558 was published on 2026-06-08 and last updated on 2026-06-17.

CVE-2026-25558

CVE-2026-25558 is a medium-severity vulnerability with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v4: 4.8
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35071
Weakness: CWE-79
Published: 2026-06-08
Last modified: 2026-06-17

Description

QloApps through 1.7.0 contains a stored cross-site scripting vulnerability in the admin file manager that allows authenticated administrators to inject malicious JavaScript by uploading crafted SVG files. Attackers can embed JavaScript event handlers such as onload within SVG files uploaded through the file manager to execute arbitrary scripts in the browser of any user who subsequently views the file.

Frequently asked questions

What is CVE-2026-25558?: QloApps through 1.7.0 contains a stored cross-site scripting vulnerability in the admin file manager that allows authenticated administrators to inject malicious JavaScript by uploading crafted SVG files. Attackers can embed JavaScript event handlers such as onload within SVG files uploaded through the file manager to execute arbitrary scripts in the browser of any user who subsequently views the file.
How severe is CVE-2026-25558?: CVE-2026-25558 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-25558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-25558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25558 have an EU (EUVD) identifier?: Yes. CVE-2026-25558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35071.
When was CVE-2026-25558 published?: CVE-2026-25558 was published on 2026-06-08 and last updated on 2026-06-17.

References

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

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CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
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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