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CVE-2021-24670: The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks

medium Affects coolclock (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks

Package
coolclock (WordPress plugin) WordPress
Affected versions
<4.3.5
Fixed in
4.3.5
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 1% (49.8th percentile)
Published
2021-09-27
Source
nvd

References

CWE-79
NVD recordcoolclock (WordPress plugin) advisories

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