November 14, 2026

CVE Watchtower

CVE-2026-124552webmin webmin Cross-site Scripting (XSS)

NVD

Vulnerability Summary

Webmin through 2.670 contains a stored cross-site scripting vulnerability in the Shorewall and Shorewall6 modules' list.cgi, which renders table fields and COMMENT lines unescaped. Authenticated users with table edit permission can store JavaScript via savecmt.cgi or table entries that executes when other users, including root, view the list page.
Severity Level
MEDIUM(4.8)
Published Date
Nov 8, 2026
Last Modified
Nov 10, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.19%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) ↗
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CVSS v4.0 Base Metrics — Score 4.8 (MEDIUM)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredHigh
User InteractionPassive
Confidentiality (Vulnerable System)Low
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)Low
Integrity (Subsequent System)Low
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 4.8)
CVSS v3.1 Base Metrics — Score 4.8 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • webmin webmin <= 2.670
Patched Versions
  • webmin webmin 2.670

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run webmin webmin and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 8, 2026Published
  • Nov 10, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 02:13 UTC