What is CVE-2022-25629?

CVE-2022-25629 is a medium-severity vulnerability in Symantec Messaging Gateway, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-12-09.

How severe is CVE-2022-25629?

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

XSS in Symantec Messaging Gateway

CVE-2022-25629

An authenticated user who has the privilege to add/edit annotations on the Content tab, can craft a malicious annotation that can be executed on the annotations page (Annotation Text Column).

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-12-09 · 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: 0.004 (30.9th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Symantec Messaging Gateway
Symantec Messaging Gateway — versions All releases prior to SMG 10.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support.broadcom.com/web/ecx/support-content-notification/-/external/content/Se… (Vendor Advisory)

Frequently asked questions

What is CVE-2022-25629?: CVE-2022-25629 is a medium-severity vulnerability in Symantec Messaging Gateway, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-12-09.
How severe is CVE-2022-25629?: Medium severity. CVSS v3 base score is 5.4 out of 10.