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Post Snippets <= 4.2.4 - Contributor+ Stored XSS via Snippet Variable

Type: advisorySource: Official CVE List1 source record

The Post Snippets WordPress plugin through 4.2.4 does not properly escape variable values substituted into snippets before outputting them, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when the content is viewed.

Announced Group revision 1
Original source ↗

CVE-2026-12980

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-2026-12980

Post Snippets

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": "Post Snippets",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "4.2.4"
      }
    ],
    "defaultStatus": "unknown"
  }
]
Related CVEs
CVE-2026-12980

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#16704 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement