PatchSiren

PatchSiren cyber security CVE debrief

CVE-2017-5858 Conversejs CVE debrief

CVE-2017-5858 affects multiple Converse.js releases and can let a remote attacker make the application display messages as if they came from another user or contact. The practical risk is social engineering: users may be misled by a forged sender identity in the chat interface.

Vendor
Conversejs
Product
Converse.js
CVSS
MEDIUM 5.9
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-09
Original CVE updated
2026-05-13
Advisory published
2017-02-09
Advisory updated
2026-05-13

Who should care

Organizations and users running Converse.js 0.8.0-1.0.6 or 2.0.0-2.0.4, especially environments that rely on the client UI to establish who said what.

Technical summary

NVD describes an incorrect implementation of XEP-0280 Message Carbons in Converse.js that allows remote impersonation in the displayed conversation context. The record lists affected versions 0.8.0-1.0.6 and 2.0.0-2.0.4, with CVSS v3.0 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N and weaknesses CWE-20 and CWE-346. The main impact is integrity loss in the user interface rather than data exposure or service disruption.

Defensive priority

Medium priority: the issue is remotely reachable and can directly undermine trust in message identity, but NVD rates attack complexity as high and the CVSS score is 5.9.

Recommended defensive actions

  • Identify any deployed Converse.js instances and confirm whether they fall within the affected version ranges.
  • Upgrade to a Converse.js release that is not listed as vulnerable in the NVD record.
  • Treat sender identity shown by the client as untrusted until the affected versions are removed or remediated.
  • Review the linked patch commit and vendor advisories to confirm the exact remediation path in your environment.

Evidence notes

Source corpus shows the CVE published on 2017-02-09 and modified by NVD on 2026-05-13. NVD lists affected Converse.js versions explicitly and provides a patch commit reference plus third-party advisories. The third-party advisory URL/title in the corpus uses CVE-2017-5589, which does not match this CVE record number, so it should be treated as a reference-label mismatch rather than a different vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-5858 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-5858

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-5858 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-5858

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.