CVE-2026-77758Public exploitNetwork attack vector

Unauthenticated billing-data disclosure via unconfirmed portal session

Published Aug 26, 2026 · Updated Aug 26, 2026

Information disclosure in Themeisle WP Full Pay before 8.5.1 allows remote attackers to read customers' subscription and billing data. The customer portal creates a session from an email address before confirming the emailed security code, and its subscription REST endpoint trusts that unconfirmed session cookie when returning records. The attacker needs a victim's email address and an installation connected to Stripe with an existing customer; exposed records include subscription identifiers, status, plan and product names, quantities, prices, and period dates.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Themeisle WP Full Pay before 8.5.1 allows remote attackers to read customers' subscription and billing data. The customer portal creates a session from an email address before confirming the emailed security code, and its subscription REST endpoint trusts that unconfirmed session cookie when returning records. The attacker needs a victim's email address and an installation connected to Stripe with an existing customer; exposed records include subscription identifiers, status, plan and product names, quantities, prices, and period dates.

The record

CVE
CVE-2026-77758
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
Query Solutions Ltd.
Product
WP Full Pay
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <8.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Query Solutions Ltd. · WP Full Payversion=0 <8.5.1

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Information Exposure
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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