CVE-2021-24677Public exploitNetwork attack vector

Private-post title disclosure via unauthenticated REST endpoint

Published Oct 18, 2021 · Updated Aug 3, 2024

Improper access control in Edeesims FindMyBlocks before 3.4.0 allows remote attackers to read private-post titles through the REST API. The blocks REST route accepts a block name and returns matching posts without an authorization check, including titles for private posts containing the requested block. No WordPress account is required; disclosure is limited to titles of private posts containing the requested Gutenberg block.

CVSS severity5.3
Medium
EPSS probability1.25%
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

Improper access control in Edeesims FindMyBlocks before 3.4.0 allows remote attackers to read private-post titles through the REST API. The blocks REST route accepts a block name and returns matching posts without an authorization check, including titles for private posts containing the requested block. No WordPress account is required; disclosure is limited to titles of private posts containing the requested Gutenberg block.

The record

CVE
CVE-2021-24677
Published
Oct 18, 2021
Updated
Aug 3, 2024
Vendor
Edeesims
Product
Find My Blocks
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=3.4.0 <3.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Edeesims · Find My Blocksversion=3.4.0 <3.4.0

Published CVSS scores

5.3NIST NVDCVSS: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.

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-284Improper Access Control
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

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