CSS 2 is a technology platform whose security posture is illustrated by a Fedora 42 advisory that fixes an important Cross-Site Scripting (XSS) flaw in RoundcubeMail.
CSS 2 is a technology platform tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed December 25, 2025; most recent activity December 25, 2025.
CSS 2 is a technology platform whose security posture is illustrated by a Fedora 42 advisory that fixes an important Cross-Site Scripting (XSS) flaw in RoundcubeMail. This underscores that web-based components within Linux distributions can present web-attack surfaces and require timely patching and vulnerability management to maintain security.
Fedora 42 and 43 have reported vulnerabilities in RoundCube Webmail, specifically related to cross-site scripting (XSS) and information disclosure. Users of RoundCube, a browser-based multilingual IMAP client, are…
CSS 2 is a technology platform whose security posture is illustrated by a Fedora 42 advisory that fixes an important Cross-Site Scripting (XSS) flaw in RoundcubeMail.
The most recent intelligence report mentioning CSS 2 on ThreatCluster is dated December 25, 2025.
Across ThreatCluster reporting, CSS 2 most frequently co-occurs with CVE-2025-68460, CVE-2025-68461, MySQL, PHP, PostgreSQL, among 10 tracked related entities.
The most significant recent cluster is “Fedora 42 and 43 Roundcube Webmail XSS Vulnerabilities Addressed” (2 articles · Updated December 25, 2025). CSS 2 appears across 1 threat cluster in total, listed above with sources.
CSS 2 appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.