PublicCMS v5.202506.d and earlier is vulnerable to stored XSS. Uploaded PDFs can contain JavaScript payloads and bypass PDF security checks in the backend CmsFileUtils.java. If a user uploads a PDF file containing a malicious payload to the system and views it, the embedded JavaScript payload can be triggered, resulting in issues such as credential theft, arbitrary API execution, and other security concerns. This vulnerability affects all file upload endpoint, including /cmsTemplate/save, /file/doUpload, /cmsTemplate/doUpload, /file/doBatchUpload, /cmsWebFile/doUpload, etc.

A vulnerability has been found in Sanluan PublicCMS up to 4.0.202506.d/5.202506.d/6.202506.d. Impacted is the function Paid of the file publiccms-parent/publiccms-trade/src/main/java/com/publiccms/logic/service/trade/TradePaymentService.java of the component Trade Payment Handler. The manipulation of the argument paymentId leads to improper authorization. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is 7329437e1288540336b1c66c114ed3363adcba02. It is recommended to apply a patch to fix this issue.

A vulnerability was found in Sanluan PublicCMS up to 5.202506.d. Affected is the function delete of the file publiccms-trade/src/main/java/com/publiccms/controller/web/trade/TradeAddressController.java of the component Trade Address Deletion Endpoint. Performing a manipulation of the argument ids results in improper authorization. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability has been found in Sanluan PublicCMS up to 5.202506.d. This impacts the function Save of the file com/publiccms/controller/admin/sys/TaskTemplateAdminController.java of the component Task Template Management Handler. Such manipulation of the argument path leads to path traversal. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.