What is CVE-2022-4902?

CVE-2022-4902 is a low-severity vulnerability in Exo Chat Application, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2023-02-06.

How severe is CVE-2022-4902?

Low severity. CVSS v3 base score is 3.5 out of 10.

XSS in Exo Chat Application

CVE-2022-4902

A vulnerability classified as problematic has been found in eXo Chat Application. Affected is an unknown function of the file application/src/main/webapp/vue-app/components/ExoChatMessageComposer.vue of the component Mention Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 3.3.0-20220417 is able to address this issue. The name of the patch is 26bf307d3658d1403cfd5c3ad423ce4c4d1cb2dc. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-220212.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-02-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.4% 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: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vuldb.com/ (Permissions Required, technical-description, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
github.com/exoplatform/chat-application/pull/485 (issue-tracking, Patch, Third Party Advisory)
community.exoplatform.com/portal/dw/tasks/taskDetail/56304 (Permissions Required, related, Vendor Advisory)
github.com/exoplatform/chat-application/commit/26bf307d3658d1403cfd5c3ad423ce4c… (Patch, Third Party Advisory, patch)
github.com/exoplatform/chat-application/releases/tag/3.3.0-20220417 (Third Party Advisory, patch)

Frequently asked questions

What is CVE-2022-4902?: CVE-2022-4902 is a low-severity vulnerability in Exo Chat Application, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2023-02-06.
How severe is CVE-2022-4902?: Low severity. CVSS v3 base score is 3.5 out of 10.