LiveActive security incident?Get immediate response
CVE Record

CVE-2026-32563: WordPress ACPT (Pro) - Custom Post Types Plugin for WordPress plugin <= 2.0.63 - PHP Object Injection vulnerability

Subscriber PHP Object Injection in ACPT (Pro) - Custom Post Types Plugin for WordPress <= 2.0.63 versions.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A flaw in the WordPress ACPT Pro plugin could allow unsafe data to create PHP objects. The supplied CVSS rating indicates potential compromise of site confidentiality, integrity, and availability. Actual impact depends on reachable code and a usable object chain, neither of which is documented in the bundle.

Executive priority

Prioritize immediate inventory and remediation because the reported impact is critical and remotely reachable. Focus first on public-facing WordPress sites. There is no supplied evidence of exploitation, but uncertainty about authentication and the absence of a documented fixed version justify rapid vendor verification and compensating controls.

Technical view

CVE-2026-32563 is classified as CWE-502 PHP object injection in ACPT Pro versions through 2.0.63. CVSS 3.1 scores it 9.8 with network access, low complexity, no user interaction, and no privileges. However, the description says “Subscriber,” creating uncertainty about whether authentication is required.

Likely exposure

Potentially exposed systems are WordPress installations running ACPT Pro 2.0.63 or earlier. The bundle provides no CPEs, endpoint details, installation prevalence, or reliable affected-version metadata beyond the title and description. Confirm the exact plugin edition and deployed version locally.

Exploitation context

The bundle does not establish active exploitation, and the CVE is not listed as KEV. It provides no public exploit evidence, vulnerable request path, deserialization sink, or confirmed gadget chain. Treat internet-accessible affected sites as urgent while avoiding assumptions that code execution is automatic.

Researcher notes

The evidence bundle is incomplete and internally inconsistent: the CVSS vector says no privileges, while the description calls this “Subscriber” object injection. No vulnerable parameter, endpoint, sink, gadget chain, root cause, patch commit, or fixed version is provided. Validate those details before making exploitability claims.

Mitigation direction

  • Inventory WordPress sites for ACPT Pro version 2.0.63 or earlier.
  • Check current vendor and Patchstack guidance for a confirmed safe release or mitigation.
  • Update only to a release explicitly confirmed to address CVE-2026-32563.
  • Disable the plugin temporarily where business impact permits and no confirmed fix is available.
  • Maintain tested backups before remediation and restrict administrative access.

Validation and detection

  • Confirm the installed plugin identity, edition, and version on every WordPress instance.
  • Verify no active installation remains at version 2.0.63 or earlier after remediation.
  • Review web and application logs for unusual plugin-related requests or errors.
  • Check WordPress files, accounts, settings, and content for unauthorized changes.
  • Test site functionality after updating or disabling the plugin.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-502: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-32563 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-32563Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
A CPTACPT (Pro) - Custom Post Types Plugin for WordPressn/aunaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-502 · source CWE mapping

Deserialization of Untrusted Data

Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.