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CVE Record

CVE-2026-3496: JetBooking <= 4.0.3 - Unauthenticated SQL Injection via 'check_in_date' Parameter

The JetBooking plugin for WordPress is vulnerable to SQL Injection via the 'check_in_date' parameter in all versions up to, and including, 4.0.3. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-3496 affects the JetBooking WordPress plugin through version 4.0.3. An unauthenticated attacker could query the site in a way that exposes sensitive database information. This is primarily a confidentiality risk for WordPress sites using JetBooking, especially booking sites holding customer or reservation data.

Executive priority

High priority for any public WordPress site using JetBooking, particularly if it stores customer, reservation, or account data. The issue is unauthenticated and remotely reachable, but supplied sources do not show active exploitation. Patch or apply vendor guidance promptly after confirming exposure.

Technical view

The vulnerability is SQL injection in the JetBooking plugin’s check_in_date parameter. Sources attribute it to insufficient escaping and inadequate SQL query preparation. CVSS 3.1 is 7.5: network exploitable, low complexity, no privileges, no user interaction, with high confidentiality impact and no stated integrity or availability impact.

Likely exposure

Internet-facing WordPress sites using Crocoblock JetBooking versions up to and including 4.0.3 are the likely exposed systems. The source bundle does not identify affected hosting configurations, themes, or whether the vulnerable path requires a specific booking feature to be enabled.

Exploitation context

The CVE description says unauthenticated attackers can append SQL to existing queries to extract sensitive database information. The source bundle marks CISA KEV as false and provides no cited evidence of active exploitation. Treat this as remotely exploitable but not confirmed exploited from the supplied sources.

Researcher notes

Evidence is limited to the CVE description, Wordfence advisory reference, and Crocoblock changelog link. The bundle states affected versions up to 4.0.3 but does not name a fixed version. Avoid assuming exploit-in-the-wild status; KEV is false in the supplied data.

Mitigation direction

  • Inventory WordPress sites for the Crocoblock JetBooking plugin and version.
  • Prioritize sites running JetBooking 4.0.3 or earlier.
  • Check Crocoblock’s JetBooking changelog and vendor guidance for the fixed release.
  • Update JetBooking if a vendor-fixed version is available.
  • Restrict or monitor exposed booking endpoints until remediation is confirmed.
  • Back up the site and database before plugin changes.

Validation and detection

  • Confirm the installed JetBooking version in each WordPress admin panel or asset inventory.
  • Review web and WAF logs for unusual requests involving check_in_date.
  • Check database access logs for unexpected read patterns, if available.
  • Verify remediation by confirming the plugin version is above the affected range, if vendor guidance supports it.
  • Monitor Wordfence and Crocoblock references for updated exploit or fix details.
Prepared
Confidence
medium
Sources
4

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-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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.

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description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. 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-2026-3496 mapping review

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

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
0Timeline events
0ADP providers
3Source links

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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2026-3496Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Products and packages named in the record

VendorProductVersion / packageStatus
CrocoblockJetBooking0unaffected
Weakness

CWE details

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