CVE-2021-27778

Name: CVE-2021-27778
Creator: NVD / NIST
Published: 2022-06-01T00:15:07.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2021-27778 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. HCL Traveler is vulnerable to a cross-site scripting (XSS) caused by improper validation of the Name parameter for Approved Applications in the Traveler administration web pages. An attacker could exploit this vulnerability to execute a malicious script to access any cookies, session tokens, or other sensitive information retained by the browser and used with that site.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

HCL Traveler is vulnerable to a cross-site scripting (XSS) caused by improper validation of the Name parameter for Approved Applications in the Traveler administration web pages. An attacker could exploit this vulnerability to execute a malicious script to access any cookies, session tokens, or other sensitive information retained by the browser and used with that site.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.35%

27.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Hcltech	Traveler	<= 12.0.1.0

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098044Third Party Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098044Third Party Advisory

Timeline

Published: Jun 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27778?

How severe is CVE-2021-27778?

CVE-2021-27778 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27778?

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-2021-27778?

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

Scan your code now

Source: NVD / NIST