XSS in Harmistechnology Je Messenger

CVE-2019-9919

An issue was discovered in the Harmis JE Messenger component 1.2.2 for Joomla!. It is possible to craft messages in a way that JavaScript gets executed on the side of the receiving user when the message is opened, aka XSS.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-9919?
CVE-2019-9919 is a medium-severity vulnerability in Harmistechnology Je Messenger, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-03-29.
How severe is CVE-2019-9919?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2019-9919 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.