CVE-2021-24633

MEDIUM

Countdown Block < 1.1.2 - Authenticated Arbitrary Post Content Modification via eb_write_block_css AJAX Action

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://wpscan.com/vulnerability/431901eb-0f95-4033-b943-324e6d3844a5

Scores

CVSS v3 4.3
EPSS 0.0065
EPSS Percentile 46.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-862
Status published
Products (1)
wpdeveloper/countdown_block < 1.1.2
Published Sep 27, 2021
Tracked Since Feb 18, 2026