CVE-2021-26698

Name: CVE-2021-26698
Creator: NVD / NIST
Published: 2021-07-22T17:15:09.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.43%

Last modified Jun 17, 2026

CVE-2021-26698 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. OX App Suite before 7.10.3-rev32 and 7.10.4 before 7.10.4-rev18 allows XSS via a code snippet (user-generated content) when a sharing link is created and the dl parameter is used.. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

Description

OX App Suite before 7.10.3-rev32 and 7.10.4 before 7.10.4-rev18 allows XSS via a code snippet (user-generated content) when a sharing link is created and the dl parameter is used.

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

1.43%

69.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Open-Xchange	Open-Xchange Appsuite	7.10.3
Open-Xchange	Open-Xchange Appsuite	7.10.4

References

http://packetstormsecurity.com/files/163527/OX-App-Suite-OX-Guard-OX-Documents-SSRF-Cross-Site-Scripting.htmlExploit, Mailing List, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
https://www.open-xchange.comVendor Advisory
http://packetstormsecurity.com/files/163527/OX-App-Suite-OX-Guard-OX-Documents-SSRF-Cross-Site-Scripting.htmlExploit, Mailing List, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jul/33Exploit, Mailing List, Third Party Advisory
https://www.open-xchange.comVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-26698?

OX App Suite before 7.10.3-rev32 and 7.10.4 before 7.10.4-rev18 allows XSS via a code snippet (user-generated content) when a sharing link is created and the dl parameter is used.

How severe is CVE-2021-26698?

CVE-2021-26698 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26698?

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-2021-26698?

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

Scan your code now

Source: NVD / NIST