How severe is CVE-2026-22254?

CVE-2026-22254 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability none.

Is CVE-2026-22254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22254?

CVE-2026-22254 affects Wintercms Winter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22254?

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

Does CVE-2026-22254 have an EU (EUVD) identifier?

Yes. CVE-2026-22254 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5618.

When was CVE-2026-22254 published?

CVE-2026-22254 was published on 2026-02-06 and last updated on 2026-06-17.

CVE-2026-22254

CVE-2026-22254 is a none-severity vulnerability in Wintercms Winter 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-79.

Key facts

Severity: None (CVSS 3.x base score 0.0)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5618
Weakness: CWE-79
Affected product: Wintercms Winter
Published: 2026-02-06
Last modified: 2026-06-17

Description

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Versions of Winter CMS before 1.2.10 allow users with access to the CMS Asset Manager were able to upload SVGs without automatic sanitization. To actively exploit this security issue, an attacker would need access to the Backend with a user account with the following permission: cms.manage_assets. The Winter CMS maintainers strongly recommend that the cms.manage_assets permission only be reserved to trusted administrators and developers in general. This vulnerability is fixed in 1.2.10.

Frequently asked questions

What is CVE-2026-22254?: Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Versions of Winter CMS before 1.2.10 allow users with access to the CMS Asset Manager were able to upload SVGs without automatic sanitization. To actively exploit this security issue, an attacker would need access to the Backend with a user account with the following permission: cms.manage_assets. The Winter CMS maintainers strongly recommend that the cms.manage_assets permission only be reserved to trusted administrators and developers in general. This vulnerability is fixed in 1.2.10.
How severe is CVE-2026-22254?: CVE-2026-22254 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability none.
Is CVE-2026-22254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22254?: CVE-2026-22254 affects Wintercms Winter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22254 have an EU (EUVD) identifier?: Yes. CVE-2026-22254 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5618.
When was CVE-2026-22254 published?: CVE-2026-22254 was published on 2026-02-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wintercms:winter:*:*:*:*:*:*:*:*

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