CVE-2026-17087
CVE-2026-17087 — WP Travel Engine <= 6.8.4 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'booking_id' Parameter
The WP Travel Engine – Tour Booking Plugin – Tour Operator Software plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to view private booking billing details — including the victim customer's first name, last name, email address, street address, city, and phone number — rendered as default values in checkout form fields by binding an arbitrary booking ID to the attacker's session. The only access control on the endpoint is a frontend nonce that is publicly emitted to all visitors via the wteL10n global on trip pages, meaning it provides CSRF protection only and does not restrict unauthenticated access.
Published Updated Sources: NVD, wptravelengine (CNA), GitHub, SOCRadar CTI
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Reported
not confirmed by CISA
EPSS
0%
ahead of 0% of scored CVEs
CVSS base
7.5
high
Remediation
The vendor's own words where we have them.
Upgrade WP Travel Engine – Tour Booking Plugin – Tour Operator Software to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.
First 24 hours
Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.
- Identify exposed assets running affected vendor/product/version combinations.
- Prioritize based on EPSS, PoC availability, and external exposure.
- Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.
Affected scope
Vendor, product and version as the advisories word them.
| Vendor | Product | Versions | Status |
|---|---|---|---|
| wptravelengine | WP Travel Engine – Tour Booking Plugin – Tour Operator Software | 0 to <= 6.8.4 | Vulnerable |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Availability
None
Confidentiality
High
Integrity
None
Scope
Unchanged
Attack Complexity
Low
Attack Vector
Network
Privileges Req
None
User Interaction
None
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 7.5 | CVSS 3.1 | high | 3.9 | 3.6 | NVD, wptravelengine (CNA) |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
What this weakness leads to
MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.
CWE-862 · Missing Authorization
- Read Application Data
- Read Files or Directories
- Modify Application Data
- Modify Files or Directories
Mitigation: Divide the software into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Weakness & attack patterns
- CWE-862
Inferred from the weakness class — not observed against this CVE.
- T1211Exploitation for Defensive Evasion
- T1542.002Pre-OS Boot: Component Firmware
- T1556Modify Authentication Process
Public exploit
Capability, not use: code existing is a different claim from anyone running it.
Repositories
7
2 of the 5 sampled are weaponized
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Prioritize edge telemetry for network-reachable WP Travel Engine – Tour Booking Plugin – Tour Operator Software.
- Monitor for scanner or exploit-pattern traffic after 7 public PoC repositories were reported.
Timeline
What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.
- 2026
Added · CVSS 3.1 7.5 (AV:N)
Aug 16, 2026 · NVD
Initial · CVE published
Aug 16, 2026 · NVD
Reported · Disclosed
Aug 15, 2026 · wptravelengine
Reported · Vendor Notified
Jul 24, 2026 · wptravelengine
References
12 on the record
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Abstracts/AjaxController.php#L52
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Builders/FormFields/BillingFormFields.php#L87
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Core/Controllers/Ajax/AddToCart.php#L232
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Core/Controllers/Ajax/AddToCart.php#L31
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Legacy/Cart.php#L373
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Abstracts/AjaxController.php#L52
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Builders/FormFields/BillingFormFields.php#L87
Vendor Advisory
- plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Core/Controllers/Ajax/AddToCart.php#L232
Vendor Advisory
Elsewhere on this site
- wptravelengineevery CVE for this vendor
- Remote Code Execsame class
- CWE-862other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1
What should defenders know first?
CVE-2026-17087 is WP Travel Engine <= 6.8.4 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'booking_id' Parameter, a high vulnerability affecting WP Travel Engine – Tour Booking Plugin – Tour Operator Software from wptravelengine. The current evidence does not list it in CISA KEV, and the exploit status is: Exploitation is reported, but no independent confirmation is available in the sources we have. Public exploit evidence is: 7 public PoC repositories reported; 2 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 7.5 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.