CVE-2026-2731CWE-22

Unauthenticated RCE in Dynamicweb 9 and Dynamicweb 8

Critical · published February 19, 2026

CVSS v4.0
10.0
EPSS
1%
Percentile
53.9
In the wild
Unconfirmed
What it is

Path traversal and content injection in JobRunnerBackground.aspx in DynamicWeb 8 (all) and 9 (<9.19.7 and <9.20.3) allows unauthenticated attackers to execute code via simple web requests

The record
Technical detail
CVSS v4.0
10.0 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00735 · 53.9th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-02-19T06:46Z
EPSS history
Timeline
  • 19 FEB 06:46Z
    Unauthenticated RCE in Dynamicweb 9 and Dynamicweb 8
    cvelistv5