CVE intelligence and bounded remediation

CVE-2023-0960 — A vulnerability was found in SeaCMS 11.6 and classified as problematic

Critical CVSS 9.8

A vulnerability was found in SeaCMS 11.6 and classified as problematic. Affected by this issue is some unknown functionality of the file /data/config.ftp.php of the component Picture Management. The manipulation leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-221630 is the identifier assigned to this vulnerability.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-02-22
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-502

Affected products

  • seacms / seacms / 11.6

Matched remediation archetype

Unsafe deserialization and object reconstruction

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory serialization formats accepted from requests, queues, caches, files, cookies, and cross-service messages.
  • Trace whether untrusted input can select classes, types, callbacks, constructors, or object hooks during decoding.
  • Identify signing, schema validation, trust-boundary, and compatibility settings for each decoder.

Remediate safely

  • Replace native object deserialization with a data-only format and explicit schema validation.
  • If replacement is not immediate, use a safe decoder with a minimal type allowlist and disable polymorphic or executable hooks.
  • Update the affected library and add inert tests for unknown types, extra fields, malformed nesting, and unsigned data.

Authoritative sources

Complete CVE record and remediation plan

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