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CVE-2023-22527

A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data C…

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A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server are not affected by this vulnerability as it was ultimately mitigated during regular version updates. However, Atlassian recommends that customers take care to install the latest version to protect their instances from non-critical vulnerabilities outlined in Atlassian’s January Security Bulletin.
CVSS 10.0 (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 10: +1.50
  • Fresh EPSS: 99.98%: +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

SOC Prime
Press · 20 May 2025, 07:00 · ELPACO-Team Ransomware Attack Detection: Hackers Exploit Atlassian Confluence Vulnerability (CVE-2023-22527) to Gain RDP Access and Enable RCE - SOC Prime
The Hacker News
Press · 30 Aug 2024, 07:00 · Atlassian Confluence Vulnerability Exploited in Crypto Mining Campaigns - The Hacker News
www.trendmicro.com
Press · 28 Aug 2024, 07:00 · Cryptojacking via CVE-2023-22527: Dissecting a Full-Scale Cryptomining Ecosystem - www.trendmicro.com
www.trendmicro.com
Press · 07 Feb 2024, 08:00 · Unveiling Atlassian Confluence Vulnerability CVE-2023-22527: Understanding and Mitigating Remote Code Execution Risks - www.trendmicro.com
TechTarget
Press · 23 Jan 2024, 08:00 · Attacks begin on critical Atlassian Confluence vulnerability - TechTarget
See all 9 source documents
TechTarget
Press · 23 Jan 2024, 08:00 · Attacks begin on critical Atlassian Confluence vulnerability - TechTarget
SC Media
Press · 22 Jan 2024, 08:00 · Thousands of exploit attempts reported on critical Atlassian Confluence RCE - SC Media
BleepingComputer
Press · 22 Jan 2024, 08:00 · Hackers start exploiting critical Atlassian Confluence RCE flaw - BleepingComputer
Rapid7
Press · 19 Jan 2024, 08:00 · Critical CVEs in Outdated Versions of Atlassian Confluence and VMware vCenter Server - Rapid7

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 15:13). The curve appears once the score changes.

Public exploit evidence

6

Public exploit entries / repo candidates

See 6 repos with metrics
RepositoryStarsForksLanguageUpdated
Avento/CVE-2023-22527_Confluence_RCE265Python23 Jan 2024, 09:57
Manh130902/CVE-2023-22527-POC223Python23 Jan 2024, 12:03
VNCERT-CC/CVE-2023-22527-confluence186JavaScript23 Jan 2024, 07:16
Niuwoo/CVE-2023-2252720Python24 Jan 2024, 01:28
ga0we1/CVE-2023-22527_Confluence_RCE14—17 Jan 2024, 07:12
MaanVader/CVE-2023-22527-POC11Python25 Jan 2024, 10:42
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 10; EPSS 100.0%
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 13:58:49.717973+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
16 Jan 2024, 05:00
First press mention
19 Jan 2024, 08:00
Added to the CISA KEV catalog
24 Jan 2024, 00:00
Latest press mention
20 May 2025, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
6 repositories
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar