What is the CVSS score of CVE-2019-15053?

CVE-2019-15053 has a CVSS 3.0 base score of 6.8 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L. EPSS exploitation probability: 1.3%.

Is there a public PoC exploit available for CVE-2019-15053?

Yes, a public proof-of-concept exploit is available for CVE-2019-15053. Prioritise patching immediately. EPSS: 1.3%.

Html Include And Replace Macro CVE-2019-15053

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2019-08-14 cve@mitre.org

XSS Atlassian Html Include And Replace Macro

6.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Aug 14, 2019 - 17:15 nvd

MEDIUM 6.8

DescriptionNVD

The "HTML Include and replace macro" plugin before 1.5.0 for Confluence Server allows a bypass of the includeScripts=false XSS protection mechanism via vectors involving an IFRAME element.

AnalysisAI

The "HTML Include and replace macro" plugin before 1.5.0 for Confluence Server allows a bypass of the includeScripts=false XSS protection mechanism via vectors involving an IFRAME element. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The "HTML Include and replace macro" plugin before 1.5.0 for Confluence Server allows a bypass of the includeScripts=false XSS protection mechanism via vectors involving an IFRAME element. Affected products include: Atlassian Html Include And Replace Macro. Version information: before 1.5.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.