LiveActive security incident?Get immediate response
CVE Record

CVE-2026-78032: SOY CMS contains an issue with deserialization of untrusted data.

SOY CMS contains an issue with deserialization of untrusted data. An arbitrary code may be executed by an attacker with the web server privilege.

CriticalCVSS 9.8Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

SOY CMS has a critical flaw that may let an unauthenticated remote attacker execute code with the web server’s privileges. A successful compromise could expose website data, alter content, install malicious files, or disrupt service. The supplied evidence does not clearly identify affected release numbers or confirm a vendor fix.

Executive priority

Prioritize immediate asset discovery and authoritative version confirmation. Escalate internet-facing confirmed-affected systems for urgent remediation and compromise assessment. The potential impact is severe, but the supplied evidence does not establish exploitation in the wild or specify a validated patch.

Technical view

CVE-2026-78032 is classified as CWE-502, deserialization of untrusted data. Its CVSS 3.0 score is 9.8, reflecting network access, low complexity, no required privileges or user interaction, and high confidentiality, integrity, and availability impact. The supplied affected-version entry, “0,” is insufficient for reliable version matching.

Likely exposure

Internet-accessible SOY CMS deployments are the principal concern because the CVSS vector indicates remote, unauthenticated reachability. Actual exposure cannot be determined from the bundle because affected versions and vulnerable components are not clearly enumerated. Do not assume every SOY CMS installation is affected; verify against vendor and JVN guidance.

Exploitation context

The sources describe potential arbitrary code execution with web server privileges. The bundle marks this CVE as absent from KEV and provides no evidence of active exploitation, public exploit availability, or observed attacks. Treat it as highly consequential but not confirmed exploited in the wild.

Researcher notes

The description and vector support a remotely reachable, unauthenticated unsafe-deserialization issue with code execution under the web server account. However, the bundle lacks the deserialization entry point, affected version range, prerequisites, patch details, and detection indicators. Researchers should avoid inferring these details and monitor the vendor and JVN records for clarification.

Mitigation direction

  • Identify all SOY CMS deployments, including externally hosted and legacy instances.
  • Check the vendor and JVN advisories for affected releases and remediation guidance.
  • Apply the vendor-supported update or mitigation when confirmed by authoritative guidance.
  • Restrict public access to administrative or unnecessary CMS interfaces where operationally feasible.
  • Increase monitoring for unexpected files, processes, outbound connections, and content changes.

Validation and detection

  • Record each deployment’s exact SOY CMS version and internet accessibility.
  • Compare versions and configurations with the latest vendor and JVN advisories.
  • Review web, application, and system logs for unexplained requests, errors, or process creation.
  • Check web directories and CMS files for unauthorized additions or modifications.
  • Confirm remediated systems no longer match the vendor-defined vulnerable conditions.
Prepared
Confidence
medium
Sources
4

Public sources used

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
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-78032 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 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/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.

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

SSVC decision data

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

CVSS vector scores

2 official scores

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 3.0CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9jpcert
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——jpcert

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-78032Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Tsuyoshi SaitoSOY CMS0unaffected
Weakness

CWE details

CWE-502

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

CWE-502 · source CWE mapping

CWE mapping pending import

This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.

Open CWE intelligenceSame-CWE CVEs