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Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes

Type: advisorySource: Official CVE List1 source record

The Otter Blocks WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.

Announced Source revision 1
Original source ↗

CVE-2026-109933

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-2026-109933

Otter Blocks

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.

[
  {
    "vendor": "Unknown",
    "product": "Otter Blocks",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.2.8",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-109933

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#52634 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement