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CVE-2026-121771 WordPress Gutenberg Blocks plugin <= 3.7.6 - Sensitive Data Exposure vulnerability

5.3 mediumFix available

Medium (5.3) in publishpress gutenberg blocks.

On this page
Insertion of Sensitive Information Into Sent Data vulnerability in PublishPress Gutenberg Blocks advanced-gutenberg allows Retrieve Embedded Sensitive Data.This issue affects Gutenberg Blocks: from n/a through 3.7.6.

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
CWE-201 Insertion of Sensitive Information Into Sent Data
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
Assigned by
Patchstack (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

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CVE-2026-121771

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Affected

  • publishpress:gutenberg blocks

Versions

From the CNA's record in the CVE List.

ProductAffected
PublishPress Gutenberg Blocksthrough 3.7.6

Fixed in

ProductFixed in
PublishPress Gutenberg Blocks3.7.7

Fix and patched versions

  • PublishPress Gutenberg Blocks: fixed in 3.7.7

Attack patterns (CAPEC)

  • CAPEC-12 Choosing Message Identifier Likelihood: High · Severity: High
  • CAPEC-217 Exploiting Incorrectly Configured SSL/TLS Likelihood: Low
  • CAPEC-612 WiFi MAC Address Tracking Severity: Low
  • CAPEC-613 WiFi SSID Tracking Severity: Low
  • CAPEC-618 Cellular Broadcast Message Request Severity: Low
  • CAPEC-619 Signal Strength Tracking Severity: Low
  • CAPEC-621 Analysis of Packet Timing and Sizes Severity: Low
  • CAPEC-622 Electromagnetic Side-Channel Attack Severity: Low
  • CAPEC-623 Compromising Emanations Attack Severity: Low

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

History

  1. The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

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