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High

Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit Action cb Parameter

Type: advisorySource: Official CVE List1 source record

Cotonti 1.0.0 passes the base64-decoded cb parameter to unserialize() without allowed_classes restriction in the comments plugin EditAction. Registered users with comment write permissions can instantiate arbitrary PHP objects and potentially achieve file write or code execution through gadget chains.

Announced Source revision 1
Original source ↗

CVE-2026-93872

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-2026-93872

Cotonti

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/Cotonti/Cotonti",
    "vendor": "Cotonti",
    "product": "Cotonti",
    "versions": [
      {
        "status": "affected",
        "version": "1.0.0",
        "versionType": "custom",
        "lessThanOrEqual": "1.0.0"
      }
    ],
    "packageURL": "pkg:composer/cotonti/cotonti",
    "programFiles": [
      "plugins/comments/controllers/actions/EditAction.php",
      "system/cache.php"
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-93872

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#1720 · Revision 1
Added to Heist Feed
Publisher date
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