WordPress 2 vulnerabilities

Is the LiteSpeed Cache plugin safe?

Below are the known, publicly disclosed vulnerabilities of the LiteSpeed Cache (WordPress) component. If you use it on your site, check the version and update it before the flaw gets exploited.

Using the LiteSpeed Cache plugin? Check for free whether your site is vulnerable through it, or have us update and secure it.

Known vulnerabilities

Wysoka · CVSS 7.2 CVE-2026-18978 August 28, 2026

LiteSpeed Cache: cross-site scripting (XSS)

Cross-site scripting (XSS) w komponencie LiteSpeed Cache. Ocena zagrożenia: Wysoka (CVSS 7.2). Zaktualizuj podatny komponent do najnowszej wersji lub tymczasowo go wyłącz.

Wysoka · CVSS 7.2 CVE-2026-3375 May 27, 2026

LiteSpeed Cache: cross-site scripting (XSS)

Cross-site scripting (XSS) w komponencie LiteSpeed Cache. Ocena zagrożenia: Wysoka (CVSS 7.2). Zaktualizuj podatny komponent do najnowszej wersji lub tymczasowo go wyłącz.

How to check whether this affects you

  • Check the installed version of the LiteSpeed Cache component in the admin panel.
  • Compare it with the fixed version noted in the details of the relevant vulnerability above.
  • If your version is older, update the component to the latest available.
  • If a fix has not been released yet, temporarily disable the vulnerable element and watch your logs.
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