CVE-2025-55715Network attack vector

Unauthenticated retrieval of embedded sensitive data

Published Aug 20, 2025 · Updated May 12, 2026

Sensitive-data exposure in Themeisle Otter Blocks 3.1.0 and earlier allows remote attackers to retrieve embedded sensitive data. Patchstack and Themeisle have not published the affected component or the operation that inserts sensitive information into sent data. No authentication or user interaction is required, and the reported consequence is limited to disclosure without data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.37%
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

Sensitive-data exposure in Themeisle Otter Blocks 3.1.0 and earlier allows remote attackers to retrieve embedded sensitive data. Patchstack and Themeisle have not published the affected component or the operation that inserts sensitive information into sent data. No authentication or user interaction is required, and the reported consequence is limited to disclosure without data modification or service interruption.

The record

CVE
CVE-2025-55715
Published
Aug 20, 2025
Updated
May 12, 2026
Vendor
Themeisle
Product
Otter Blocks
Classifications
CWE-201, CAPEC-37
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record 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 <=3.1.0 changes=[{"at":"3.1.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Themeisle · Otter Blocksversion=0 <=3.1.0 changes=[{"at":"3.1.1","status":"unaffected"}]

Published CVSS scores

7.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
CAPEC-37Retrieve Embedded Sensitive Data

Public exploit references

No public exploit references are available in this record.

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