CVE-2026-22254
Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager
No known exploitation. EPSS puts it in the 20th percentile. Fixed in 1.2.10.
What to do
Find your product and version, then upgrade to the build on the right.
- Wintercms WinterAffected: < 1.2.10Upgrade to: not statedStated by: CVE record
- Packagist winter/wn-cms-moduleAffected: < 1.2.10Upgrade to: 1.2.10Stated by: GitHub advisory
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
Winter CMS has Stored Cross-site Scripting (XSS) in Asset Manager
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.3% chance of exploitation activity in the next 30 days, which ranks it in the 20th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 14 days, from the signal feeds we watch.
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
Technical detail
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
Watch the software you run.
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We'll flag the next CVE, public exploit or patch for Winter/wn-cms-module, not every advisory.
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