What is CVE-2022-23099?

CVE-2022-23099 is a medium-severity vulnerability in Open-Xchange App Suite, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-07-27.

How severe is CVE-2022-23099?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Open-Xchange App Suite

CVE-2022-23099

OX App Suite through 7.10.6 allows XSS by forcing block-wise read.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-07-27 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.007 (49.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000

Affected products

Open-Xchange App Suite

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

open-xchange.com (Vendor Advisory)
seclists.org/fulldisclosure/2022/Jul/11 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-23099?: CVE-2022-23099 is a medium-severity vulnerability in Open-Xchange App Suite, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-07-27.
How severe is CVE-2022-23099?: Medium severity. CVSS v3 base score is 5.4 out of 10.