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CVE Record

CVE-2025-40646: Exposure of sensitive information in Viday

Exposure of sensitive information in Viday. This vulnerability could allow an attacker to obtain sensitive information about customers by intercepting HTTP requests and searching for the JWT containing sensitive user information in the JWT payload.

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2025-40646 is a sensitive information exposure issue in ViDay. The source says an attacker could intercept HTTP requests and find a JWT whose payload contains sensitive customer information. The business concern is confidentiality, not service disruption or data modification.

Executive priority

Treat this as a confidentiality risk requiring timely validation. It is not currently evidenced as exploited, but customer data exposure through tokens can create privacy, trust, and notification concerns if confirmed.

Technical view

The reported weakness maps to CWE-200. The CVSS 4.0 score is 5.9, with adjacent attack vector, high attack complexity, no privileges required, passive user interaction, and high vulnerable-system confidentiality impact. Integrity and availability impacts are not reported.

Likely exposure

Organizations using ViDay should assess exposure, especially where ViDay traffic or integrations can traverse plaintext HTTP or untrusted adjacent networks. The bundle lists ViDay as affected, but version and remediation details are limited.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not marked as KEV. Exploitation depends on intercepting HTTP requests and locating sensitive data inside JWT payloads, according to the description.

Researcher notes

Evidence is narrow: the bundle gives the vulnerability description, CVSS, CWE-200, ViDay as affected, and one INCIBE advisory. It does not provide exploit details, patch identifiers, or detailed affected-version boundaries.

Mitigation direction

  • Check INCIBE or vendor guidance for fixed versions or official configuration advice.
  • Eliminate plaintext HTTP for ViDay traffic where configuration allows.
  • Restrict ViDay access to trusted networks until token transport is confirmed.
  • Review JWT contents and remove customer-sensitive fields where administratively possible.
  • Rotate potentially exposed tokens if interception is suspected.

Validation and detection

  • Inventory ViDay deployments and confirm where the product is used.
  • Verify whether ViDay client or integration traffic uses HTTP.
  • Inspect controlled JWT samples for customer-sensitive payload fields.
  • Review proxy or gateway logs for plaintext authentication-token traffic.
  • Confirm any vendor-provided fix or advisory has been applied.
Prepared
Confidence
medium
Sources
3

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-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2025-40646 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
Medium
CVSS
5.9 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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: noTechnical 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
5.9CVSS 4.0MediumCVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——INCIBE

Vulnerability scoring details

Base CVSS 4.0 score

5.9Medium
CVSS 4.0 vector shape for CVE-2025-40646Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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
ViDayViDayall versionsunaffected
Weakness

CWE details

CWE-200

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