Medium

User Impersonation in converse.js

  • Disclosed: 11.09.2020
  • Updated: 11.10.2026 10:22

Versions of converse.js prior to 1.0.7 for 1.x or 2.0.5 for 2.x are vulnerable to User Impersonation. The package provides an incorrect implementation of XEP-0280: Message Carbons that allows a remote attacker to impersonate any user, including contacts, in the vulnerable application's display. This allows for various kinds of social engineering attacks.

Recommendation

If you're using converse.js 1.x, upgrade to 1.0.7 or later. If you're using converse.js 2.x, upgrade to 2.0.5 or later.

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package converse.js < 1.0.7, >= 2.0.0, < 2.0.5 1.0.7, 2.0.5

References

CVSS score 5.9/10
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-20, CWE-346
Platform
npm
Package
converse.js
Disclosed
11.09.2020
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-w973-2qcc-p78x - CC BY 4.0

Vulnerability history: converse.js

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
09.2020 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Medium 2

Disclosures per year

  1. 2020: 1
  2. 2021: 0
  3. 2022: 1
  4. 2023: 0
  5. 2024: 0
  6. 2025: 0
  7. 2026: 0
  1. Medium · 5.3 CVE-2018-6591 < 3.3.3 3.3.3
  2. User Impersonation in converse.js this entry
    Medium · 5.9 CVE-2017-5858 < 1.0.7, >= 2.0.0, < 2.0.5 1.0.7, 2.0.5

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