CVE-2020-17476

Name: CVE-2020-17476
Creator: NVD / NIST
Published: 2020-08-10T17:15:13.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2020-17476 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Mibew Messenger before 3.2.7 allows XSS via a crafted user name.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

Mibew Messenger before 3.2.7 allows XSS via a crafted user name.

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

0.69%

47.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mibew	Messenger	< 3.2.7

References

https://github.com/Mibew/mibew/commit/84f5bca0a90b2fe470e35e9b5121548ccce0093cPatch, Third Party Advisory
https://mibew.org/announcements/2020/07/09/mibew-messenger-3-2-7-has-been-releasedRelease Notes, Vendor Advisory
https://github.com/Mibew/mibew/commit/84f5bca0a90b2fe470e35e9b5121548ccce0093cPatch, Third Party Advisory
https://mibew.org/announcements/2020/07/09/mibew-messenger-3-2-7-has-been-releasedRelease Notes, Vendor Advisory

Timeline

Published: Aug 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17476?

Mibew Messenger before 3.2.7 allows XSS via a crafted user name.

How severe is CVE-2020-17476?

CVE-2020-17476 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17476?

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-2020-17476?

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

Scan your code now

Source: NVD / NIST