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CVE Record

CVE-2026-59504: Priority – CWE-602: Client-Side Enforcement of Server-Side Security

CWE-602: Client-Side Enforcement of Server-Side Security

CriticalCVSS 9.1Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

The affected portal may trust security decisions made in a user’s browser instead of verifying them on the server. For exposed systems, a remote unauthenticated attacker could potentially bypass restrictions and access or alter sensitive ERP information. The record rates this critical, but provides limited technical detail.

Executive priority

Treat internet-facing affected portals as an immediate remediation priority because ERP data confidentiality and integrity may be at risk without authentication. Confirm exposure promptly, restrict access where feasible, and obtain vendor-backed Priwall v3 guidance. No active exploitation evidence is provided.

Technical view

CVE-2026-59504 is classified as CWE-602 in the Portal Generator add-on to Priority ERP. The CVSS 3.1 vector indicates network access, low complexity, no privileges, no user interaction, and high confidentiality and integrity impact. Availability impact is not claimed. All versions without Priwall v3 are listed as affected.

Likely exposure

Organizations using the Soft Solutions Portal Generator add-on without Priwall v3 are potentially exposed, especially when the portal is internet-accessible. The sources do not identify specific configurations, deployment patterns, or compensating controls that eliminate exposure.

Exploitation context

The supplied record does not report CISA KEV inclusion or active exploitation. Its 9.1 score indicates a potentially straightforward, unauthenticated network attack with serious data consequences, but the sources provide no observed exploitation, proof-of-concept status, or attack telemetry.

Researcher notes

The public bundle is sparse: it identifies CWE-602, the affected add-on, Priwall v3 status, and CVSS characteristics, but not vulnerable endpoints, root cause, discovery details, or patch mechanics. Researchers should avoid assuming that client-side checks are the only weakness and should validate server-side authorization boundaries under controlled conditions.

Mitigation direction

  • Inventory Priority ERP deployments using the Portal Generator add-on.
  • Identify every deployment operating without Priwall v3.
  • Confirm Priwall v3 deployment requirements and remediation guidance with Priority or Soft Solutions.
  • Restrict external portal access until remediation is validated.
  • Monitor portal activity for unauthorized access or unexpected data changes.

Validation and detection

  • Verify Priwall v3 presence and effective configuration on each portal instance.
  • Confirm server-side authorization independently protects sensitive actions and data.
  • Review access logs for unexplained unauthenticated requests or privilege boundary violations.
  • Perform controlled authorization testing after remediation.
  • Document internet exposure, affected versions, and compensating access controls.
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

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cwe · low confidence lookup

CWE-602: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-59504 mapping review

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Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.1 (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:N

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: partial

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
9.1CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2INCD

Vulnerability scoring details

Base CVSS 3.1 score

9.1Critical
CVSS 3.1 vector shape for CVE-2026-59504Attack 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:N

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
PriorityPortal Generator addon to Priority ERP (developed by Soft Solutions)All versions without Priwall v3affected
Weakness

CWE details

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

CWE-602 · source CWE mapping

Client-Side Enforcement of Server-Side Security

Client-Side Enforcement of Server-Side Security represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.