https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2004-2447.htmlhttps://patchthecve.com/cve/CVE-2004-2447.htmlTue, 16 Jun 2026 22:09:40 +0000MEDIUM 4.3: Cross-site scripting (XSS) vulnerability in 1st Class Mail Server 4.01 allows remote attackers to inject arbitrary web script or HTML via the Mailbox parameter to (1) viewmail.tagz, (2) the index script under /user/, (3) members.tagz, (4) general.tagz, (5) advanced.tagz, or (6) list.tagz.https://patchthecve.com/cve/CVE-2004-2446.htmlhttps://patchthecve.com/cve/CVE-2004-2446.htmlTue, 16 Jun 2026 22:09:40 +0000MEDIUM 5.0: Directory traversal vulnerability in 1st Class Mail Server 4.01 allows remote attackers to read arbitrary files via a ".." (dot dot) sequences in unknown vectors.https://patchthecve.com/cve/CVE-2004-2375.htmlhttps://patchthecve.com/cve/CVE-2004-2375.htmlTue, 16 Jun 2026 22:09:32 +0000HIGH 7.5: Buffer overflow in the POP3 server in 1st Class Mail Server 4.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an APOP USER command with a long second parameter (digest).