PrestaShop is an open-source e-commerce platform. Prior to versions 8.1.3 and 1.7.8.11, some event attributes are not detected by the `isCleanHTML` method. Some modules using the `isCleanHTML` method could be vulnerable to cross-site scripting. Versions 8.1.3 and 1.7.8.11 contain a patch for this issue. The best workaround is to use the `HTMLPurifier` library to sanitize html input coming from users. The library is already available as a dependency in the PrestaShop project. Beware though that in legacy object models, fields of `HTML` type will call `isCleanHTML`.

GitHub, Inc. AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

GitHub, Inc. CWE-20

GitHub, Inc. CWE-79

GitHub, Inc. https://github.com/PrestaShop/PrestaShop/commit/73cfb44666818eefd501b526a894fe884dd12129 [No types assigned]

GitHub, Inc. https://github.com/PrestaShop/PrestaShop/commit/ba06d18466df5b92cb841d504cc7210121104883 [No types assigned]

GitHub, Inc. https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-xgpm-q3mq-46rq [No types assigned]