Page generated: 09 Nov 2026, 04:20 UTC
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CVE-2023-34192

Cross Site Scripting vulnerability in Zimbra ZCS v.8.8.15 allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.

CVSS 9.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.7/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9: +1.35
  • Fresh EPSS: 77.27%: +0.39

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 2 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

CyberSecurityNews
Press · 26 Feb 2025, 08:00 · CISA Warns of Microsoft Partner Center Access Control Vulnerability Exploited in Wild - CyberSecurityNews
The Hacker News
Press · 14 Jul 2023, 07:00 · Zimbra Warns of Critical Zero-Day Flaw in Email Software Amid Active Exploitation - The Hacker News

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.7 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9; EPSS 77.3%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, low privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:55.035007+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
06 Jul 2023, 00:00
First press mention
14 Jul 2023, 07:00
Added to the CISA KEV catalog
25 Feb 2025, 00:00
Latest press mention
26 Feb 2025, 08:00
Score calculated
05 Nov 2026, 13:58