CVE-2021-38377

Name: CVE-2021-38377
Creator: NVD / NIST
Published: 2021-11-22T09:15:07.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2021-38377 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. OX App Suite through 7.10.5 allows XSS via JavaScript code in an anchor HTML comment within truncated e-mail, because there is a predictable UUID with HTML transformation results.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

OX App Suite through 7.10.5 allows XSS via JavaScript code in an anchor HTML comment within truncated e-mail, because there is a predictable UUID with HTML transformation results.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.12%

62.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-330

Affected Software

Vendor	Product	Versions
Open-Xchange	Ox App Suite	<= 7.10.5

References

http://packetstormsecurity.com/files/165038/OX-App-Suite-7.10.5-Cross-Site-Scripting-Information-Disclosure.htmlExploit, Third Party Advisory
https://seclists.org/fulldisclosure/2021/Nov/43Exploit, Mailing List, Third Party Advisory
https://www.open-xchange.comProduct
http://packetstormsecurity.com/files/165038/OX-App-Suite-7.10.5-Cross-Site-Scripting-Information-Disclosure.htmlExploit, Third Party Advisory
https://seclists.org/fulldisclosure/2021/Nov/43Exploit, Mailing List, Third Party Advisory
https://www.open-xchange.comProduct

Timeline

Published: Nov 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38377?

OX App Suite through 7.10.5 allows XSS via JavaScript code in an anchor HTML comment within truncated e-mail, because there is a predictable UUID with HTML transformation results.

How severe is CVE-2021-38377?

CVE-2021-38377 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38377?

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-2021-38377?

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

Scan your code now

Source: NVD / NIST