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Fencer Vulns
medium 6.8

CVE-2019-15053 json

The "HTML Include and replace macro" plugin before 1.5.0 for Confluence Server allows a bypass of the includeScripts=false XSS protection m…

published 2019-08-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6139

cvss
6.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

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.

Exploit prediction

1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/l0nax/CVE-2019-15053 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.