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CVE-2019-3396

The Widget Connector macro in Atlassian Confluence Server before version 6.6.12 (the fixed version for 6.6.x), from version 6.7.0 before 6.12.3 (the fixed version for 6.12.x), from version 6.13.0 before 6.13.3 (the fixed version for 6.13.x), and from version 6.14.0 before 6.14.2 …

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The Widget Connector macro in Atlassian Confluence Server before version 6.6.12 (the fixed version for 6.6.x), from version 6.7.0 before 6.12.3 (the fixed version for 6.12.x), from version 6.13.0 before 6.13.3 (the fixed version for 6.13.x), and from version 6.14.0 before 6.14.2 (the fixed version for 6.14.x), allows remote attackers to achieve path traversal and remote code execution on a Confluence Server or Data Center instance via server-side template injection.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 99.91%: +0.50

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

Sources: 9 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

Recorded Future
Press · 03 Feb 2023, 08:00 · Analyze Recent Atlassian Vulnerabilities and Keep Your Infrastructure Protected - Recorded Future
The Hacker News
Press · 29 Jul 2021, 07:00 · Top 30 Critical Security Vulnerabilities Most Exploited by Hackers - The Hacker News
Ars Technica
Press · 09 Apr 2021, 07:00 · Windows and Linux devices are under attack by a new cryptomining worm - Ars Technica
BleepingComputer
Press · 23 Apr 2020, 07:00 · NSA: Hackers exploit these vulnerabilities to deploy backdoors - BleepingComputer
Help Net Security
Press · 23 Apr 2020, 07:00 · Web shell malware continues to evade many security tools - Help Net Security
See all 9 source documents
Help Net Security
Press · 06 Feb 2020, 08:00 · Which vulnerabilities were most exploited by cybercriminals in 2019? - Help Net Security
Qualys
Press · 27 Dec 2019, 08:00 · Top 19+ Vulnerability CVEs in Santa’s Dashboard Tracking - Qualys
Google Cloud
Press · 19 Aug 2019, 07:00 · GAME OVER: Detecting and Stopping an APT41 Operation - Google Cloud
www.trendmicro.com
Press · 07 May 2019, 07:00 · CVE-2019-3396: Exploiting the Confluence Vulnerability - www.trendmicro.com

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 9.0 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

2

Public exploit entries / repo candidates

See 2 repos with metrics
RepositoryStarsForksLanguageUpdated
kh4sh3i/CVE-2019-339600Python16 Sep 2025, 09:07
skommando/CVE-2019-3396-confluence-poc00—21 Aug 2019, 06:09
Public exploit evidence
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 9.8; EPSS 99.9%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:09.064523+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
25 Mar 2019, 18:37
First press mention
07 May 2019, 07:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
03 Feb 2023, 08:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
2 repositories