What is CVE-2023-30095?

CVE-2023-30095 is a medium-severity vulnerability in Totaljs Messenger, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-04.

How severe is CVE-2023-30095?

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

XSS in Totaljs Messenger

CVE-2023-30095

A stored cross-site scripting (XSS) vulnerability in TotalJS messenger commit b6cf1c9 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the channel description field.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-05-04 · 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 (49.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Totaljs Messenger

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/totaljs/messenger/issues/11 (Exploit, Issue Tracking, Vendor Advisory)
www.edoardoottavianelli.it/CVE-2023-30095/ (Exploit, Third Party Advisory)
www.youtube.com/watch (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-30095?: CVE-2023-30095 is a medium-severity vulnerability in Totaljs Messenger, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-04.
How severe is CVE-2023-30095?: Medium severity. CVSS v3 base score is 5.4 out of 10.