Insertion of Sensitive Information Into Sent Data vulnerability in Themeisle Otter - Gutenberg Block otter-blocks allows Retrieve Embedded Sensitive Data.This issue affects Otter - Gutenberg Block: from n/a through <= 3.1.0.
Security readout for executives and security teams
Plain-English summary
This CVE concerns a WordPress block plugin that may expose sensitive information in sent or rendered data. For an affected public site, an unauthenticated remote party could potentially read confidential information without user interaction. The source bundle does not identify a specific fixed version.
Executive priority
Treat as high priority for public WordPress estates because the impact is confidentiality-only but potentially unauthenticated. Prioritize asset discovery, vendor guidance review, and removal or upgrade decisions for sites running the affected plugin.
Technical view
CVE-2025-55715 is CWE-201 in Themeisle Otter - Gutenberg Block, package otter-blocks, affecting versions through 3.1.0 per the description. CVSS 3.1 is 7.5: network, low complexity, no privileges, no user interaction, high confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is likely limited to WordPress sites using Themeisle Otter - Gutenberg Block through version 3.1.0. Sites not running otter-blocks are not indicated as affected. The affected metadata is incomplete, so confirm plugin presence and version directly.
Exploitation context
The source bundle marks KEV false and provides no evidence of active exploitation. The CVSS vector indicates a remotely reachable, unauthenticated confidentiality issue, but the provided sources do not describe exploit mechanics or observed attacks.
Researcher notes
Sources provide CVSS, CWE, affected product, and a Patchstack entry, but no patch version, exploit status, or detailed data paths. Avoid assuming specific secrets or endpoints. Validation should focus on inventory and evidence of sensitive data exposure.
Mitigation direction
Inventory WordPress sites for the otter-blocks plugin and installed version.
Check Themeisle and Patchstack guidance for a vendor-confirmed fixed release.
If no fixed release is available, consider disabling or removing the plugin.
Review affected content for exposed secrets, tokens, or private configuration.
Rotate any credentials confirmed exposed through plugin-rendered or sent data.
Validation and detection
Confirm whether each WordPress site runs otter-blocks version 3.1.0 or earlier.
Review public pages and responses using Otter blocks for unintended sensitive data.
Check caches, CDN content, and page exports for previously exposed sensitive values.
Review access logs for anonymous requests to affected pages during exposure windows.
Document compensating controls if the plugin cannot be immediately removed.
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-201: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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.
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.
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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-201 · source CWE mapping
Insertion of Sensitive Information Into Sent Data
Insertion of Sensitive Information Into Sent Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.