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CVE-2019-15053

22
FAUCET Score

CVE-2019-15053 is a medium-severity cross-site scripting (XSS) vulnerability affecting the "HTML Include and replace macro" plugin for Confluence Server versions prior to 1.5.0. It allows an authenticated attacker to bypass XSS protection mechanisms by injecting malicious code via an IFRAME element. The vulnerability has a CVSS score of 6.8, indicating that it can be exploited remotely with low complexity, requiring user interaction, and potentially leading to high confidentiality impact and low integrity and availability impact. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, suggesting it is not being actively exploited in the wild. Community discussion and media coverage for this CVE are also minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.1, <= 1.4.2CPE matchmatch criteria
cpe:2.3:a:atlassian:html_include_and_replace_macro:*:*:*:*:*:confluence:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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 Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 95th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / l0nax/CVE-2019-15053
ExploitThird Party Advisory
marketplace.atlassian.com / apps/4885/html-include-and-replace-macro
Vendor Advisory