CVE-2018-13879

Name: CVE-2018-13879
Creator: NVD / NIST
Published: 2018-07-11T01:29:01.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.62%

Last modified Jun 17, 2026

CVE-2018-13879 is a vulnerability of currently unknown severity. A reflected XSS issue was discovered in the registration form in Rocket.Chat before 0.66. When one creates an account, the next step will ask for a username. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

A reflected XSS issue was discovered in the registration form in Rocket.Chat before 0.66. When one creates an account, the next step will ask for a username. This field will not save HTML control characters but an error will be displayed that shows the attempted username unescaped via packages/rocketchat-ui-login/client/username/username.js in packages/rocketchat-ui-login/client/username/username.html.

Metrics

EPSS Probability

0.62%

45.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Rocket.Chat	Rocket.Chat	< 0.66

References

https://github.com/RocketChat/Rocket.Chat/issues/10795Third Party Advisory
https://github.com/RocketChat/Rocket.Chat/issues/10795Third Party Advisory

Timeline

Published: Jul 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-13879?

How severe is CVE-2018-13879?

Severity scoring for CVE-2018-13879 is pending analysis. The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2018-13879?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-13879?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST