https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2021-30201.htmlhttps://patchthecve.com/cve/CVE-2021-30201.htmlWed, 17 Jun 2026 03:49:51 +0000HIGH 7.5: The API /vsaWS/KaseyaWS.asmx can be used to submit XML to the system. When this XML is processed (external) entities are insecurely processed and fetched by the system and returned to the attacker. Detailed description Given the following request: ``` POST /vsaWS/KaseyaWS.asmx HTTP/1.1 Content-Type:https://patchthecve.com/cve/CVE-2021-30121.htmlhttps://patchthecve.com/cve/CVE-2021-30121.htmlWed, 17 Jun 2026 03:49:42 +0000MEDIUM 6.5: Semi-authenticated local file inclusion The contents of arbitrary files can be returned by the webserver Example request: `https://x.x.x.x/KLC/js/Kaseya.SB.JS/js.aspx?path=C:\Kaseya\WebPages\dl.asp` A valid sessionId is required but can be easily obtained via CVE-2021-30118https://patchthecve.com/cve/CVE-2021-30120.htmlhttps://patchthecve.com/cve/CVE-2021-30120.htmlFri, 14 Aug 2026 05:16:54 +0000CRITICAL 9.9: Kaseya VSA before 9.5.7 allows attackers to bypass the 2FA requirement. The need to use 2FA for authentication in enforce client-side instead of server-side and can be bypassed using a local proxy. Thus rendering 2FA useless. Detailed description --- During the login process, after the user authentihttps://patchthecve.com/cve/CVE-2021-30119.htmlhttps://patchthecve.com/cve/CVE-2021-30119.htmlFri, 14 Aug 2026 05:16:54 +0000MEDIUM 5.4: Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecurely returned in the requested web page and can be used to perform a Cross Site Scripting attack Example request: `https://x.x.x.x/HelpDeskTab/rcResults.asp?result=<script>alert(docuhttps://patchthecve.com/cve/CVE-2021-30118.htmlhttps://patchthecve.com/cve/CVE-2021-30118.htmlWed, 17 Jun 2026 03:49:41 +0000CRITICAL 9.8: An attacker can upload files with the privilege of the Web Server process for Kaseya VSA Unified Remote Monitoring & Management (RMM) 9.5.4.2149 and subsequently use these files to execute asp commands The api /SystemTab/uploader.aspx is vulnerable to an unauthenticated arbitrary file upload leadinghttps://patchthecve.com/cve/CVE-2021-30117.htmlhttps://patchthecve.com/cve/CVE-2021-30117.htmlWed, 17 Jun 2026 03:49:41 +0000CRITICAL 9.8: The API call /InstallTab/exportFldr.asp is vulnerable to a semi-authenticated boolean-based blind SQL injection in the parameter fldrId. Detailed description --- Given the following request: ``` GET /InstallTab/exportFldr.asp?fldrId=1’ HTTP/1.1 Host: 192.168.1.194 User-Agent: Mozilla/5.0 (Macintosh;