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CVE-2017-5858

16
FAUCET Score

CVE-2017-5858 describes an incorrect implementation of XEP-0280 (Message Carbons) in Converse.js versions 0.8.0 through 1.0.6 and 2.0.0 through 2.0.4. This flaw allows a remote attacker to impersonate any user within the vulnerable application's display, facilitating social engineering attacks. Rated Medium severity (CVSS 5.9), the vulnerability has a network attack vector and high attack complexity, with a high impact on integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.8.0CPE matchmatch criteria
cpe:2.3:a:conversejs:converse.js:0.8.0:*:*:*:*:*:*:*
0.8.1CPE matchmatch criteria
cpe:2.3:a:conversejs:converse.js:0.8.1:*:*:*:*:*:*:*
0.8.2CPE matchmatch criteria
cpe:2.3:a:conversejs:converse.js:0.8.2:*:*:*:*:*:*:*
0.8.3CPE matchmatch criteria
cpe:2.3:a:conversejs:converse.js:0.8.3:*:*:*:*:*:*:*
0.8.4CPE matchmatch criteria
cpe:2.3:a:conversejs:converse.js:0.8.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 15th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: converse.jsFixed in: 1.0.7
npmpatch availablevia ghsa
Product: converse.jsFixed in: 2.0.5

Vendor Advisories (1)

npmGHSA-w973-2qcc-p78xmedium

User Impersonation in converse.js

Sep 11, 2020

References

openwall.com / lists/oss-security/2017/02/09/29
ExploitMailing ListThird Party Advisory
github.com / jcbrand/converse.js/commit/42f249cabbbf5c026398e6d3b350f6f9536ea572
Patch
rt-solutions.de / en/2017/02/CVE-2017-5589_xmpp_carbons
ExploitTechnical DescriptionThird Party Advisory
rt-solutions.de / wp-content/uploads/2017/02/CVE-2017-5589_xmpp_carbons.pdf
ExploitTechnical DescriptionThird Party Advisory
securityfocus.com / bid/96183