CoolClock < 4.3.8 - Contributor+ Stored XSS via Custom Skin JSON
Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.
cve-program · CVE-2026-83545
PublishedThe CoolClock WordPress plugin before 4.3.8 does not properly escape a custom skin setting before outputting it inside an inline script, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes when the content is viewed.
Read the publisher's advisoryAffected versions, risk and source history
cve-program · CVE-2026-83545
PublishedCoolClock < 4.3.8 - Contributor+ Stored XSS via Custom Skin JSON
The CoolClock WordPress plugin before 4.3.8 does not properly escape a custom skin setting before outputting it inside an inline script, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes when the content is viewed.
- Source published
- 11 Sep 2026 06:00:05 UTC
- Source modified
- 11 Sep 2026 10:12:00 UTC
- Saved here
- 23 Oct 2026 15:48:27 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.