custom/run.cgi in Webmin before 1.870 allows remote authenticated administrators to conduct XSS attacks via the description field in the cu…

published 2017-12-30 8y ago modified 2026-06-17 4mo ago also EUVD-2017-8255

cvss: 4.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

custom/run.cgi in Webmin before 1.870 allows remote authenticated administrators to conduct XSS attacks via the description field in the custom command functionality.

Patch / fix

links 1

github.com/webmin/webmin@a9c97ee commit

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Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.8	CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /webmin/webmin/commit/a9c97eea6c268fb83d93a817d58bac75e0d2599e
issue-tracking, patch, third-party-advisory
securityfocus.com /bid/102339
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-17089
NVD CVE-2017-17089

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