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Medium

Koillection through 1.8.4 Stored XSS via Datum File Attachment Uploads

Type: advisorySource: Official CVE List1 source record

Koillection through 1.8.4 contains a stored cross-site scripting vulnerability that allows authenticated users to upload HTML files as Datum file attachments lacking MIME restrictions. Attackers can upload HTML payloads via POST /api/data/{id}/file, served as text/html from public/uploads, executing JavaScript in victims' sessions to perform actions on their behalf.

Announced Source revision 1
Original source ↗

CVE-2026-110101

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-110101

Koillection

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/benjaminjonard/koillection",
    "vendor": "benjaminjonard",
    "product": "Koillection",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "1.8.4"
      }
    ],
    "packageURL": "pkg:github/benjaminjonard/koillection",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-110101

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#34486 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement