Storyline
Critical vulnerabilities found in Zimbra Classic Web Client and Roundcube Webmail
Two critical vulnerabilities have been disclosed affecting widely used webmail platforms.
Published 2026-07-10 19:12 UTCUpdated 2026-07-11 06:45 UTC
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Evidence trail (top sources)
top sources (3 domains)domains are deduped. counts indicate coverage, not truth.3 top sources shown
Overview
Two critical vulnerabilities have been disclosed affecting widely used webmail platforms.
Score total
1.26
Momentum 24h
3
Posts
3
Origins
3
Source types
1
Duplicate ratio
0%
Why now
- Zimbra's vulnerability is newly disclosed and unassigned a CVE, increasing urgency for awareness.
- A proof of concept exists for the Roundcube flaw, raising risk of imminent exploitation.
- Both advisories were updated or published within the last 24 hours, highlighting current threat relevance.
Why it matters
- These vulnerabilities affect widely used webmail platforms critical to business and government communications.
- Exploitation could lead to arbitrary code execution, compromising user sessions and sensitive data.
- Prompt patching is essential to prevent potential attacks leveraging these flaws.
Continuity snapshot
- Trend status: insufficient_history.
- Continuity stage: broad_confirmed.
- Current status: open.
- 3 current source-linked posts are attached to this storyline.
All evidence
All evidence
Critical Zimbra Flaw Could Let Crafted Emails Run Malicious Code in User Sessions
thehackernews · thehackernews.com · 2026-07-11 06:45 UTC
Zimbra urges patching of critical XSS vulnerability in Classic Web Client
SC Media · scworld.com · 2026-07-10 21:33 UTC
Vulnerability impacting Roundcube Webmail – CVE-2025-49113 – Update 1
Canadian Centre for Cyber Security - Alerts · cyber.gc.ca · 2026-07-10 19:12 UTC
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Top publishers (this list)
- thehackernews (1)
- SC Media (1)
- Canadian Centre for Cyber Security - Alerts (1)
Top origin domains (this list)
- thehackernews.com (1)
- scworld.com (1)
- cyber.gc.ca (1)