CVE-2021-24633

4.3 mediumEPSS 0.7%

Medium (4.3) in wpdeveloper countdown block. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2021-09-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wpdeveloper:countdown_block

References

https://wpscan.com/vulnerability/431901eb-0f95-4033-b943-324e6d3844a5
https://wpscan.com/vulnerability/431901eb-0f95-4033-b943-324e6d3844a5

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