CVE-2025-62643Public exploitNetwork attack vector

Password disclosure via cleartext signup e-mails

Published Oct 17, 2025 · Updated Oct 17, 2025

Cleartext password transmission in Restaurant Brands International Assistant through 2025-09-06 exposes account passwords by e-mail. An unauthenticated signup endpoint bypasses e-mail verification and sends the newly created account password in the message body. Access to the recipient's mailbox or interception along the e-mail path is required to read the password; the flaw does not alter data or interrupt service.

CVSS severity8.6
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cleartext password transmission in Restaurant Brands International Assistant through 2025-09-06 exposes account passwords by e-mail. An unauthenticated signup endpoint bypasses e-mail verification and sends the newly created account password in the message body. Access to the recipient's mailbox or interception along the e-mail path is required to read the password; the flaw does not alter data or interrupt service.

The record

CVE
CVE-2025-62643
Published
Oct 17, 2025
Updated
Oct 17, 2025
Vendor
Restaurant Brands International
Product
Restaurant Brands International Assistant
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=2025-09-06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Restaurant Brands International · Restaurant Brands International Assistantversion=0 <=2025-09-06

Published CVSS scores

3.4MITRECVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
8.6NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo