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CVE-2021-24633

Countdown Block < 1.1.2 - Missing Authorisation in AJAX action

MEDIUM
4.3
CVSS Score
Published: September 27, 2021 at 03:25 PM UTC
Updated: June 17, 2026 at 03:40 AM UTC
1 product affected across 1 vendorCountdown Block

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.7%

Description

The Countdown Block WordPress plugin before 1.1.2 does not have authorisation in the eb_write_block_css AJAX action, which allows any authenticated user, such as Subscriber, to modify post contents displayed to users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Countdown Block· Wpdeveloperwordpress-plugin
95%
v < 1.1.2
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://wpscan.com/vulnerability/431901eb-0f95-4033-b943-324e6d3844a5

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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