by Kastro
Paper/Archive/CVE-2026-2731

CVE-2026-2731

DynamicWeb DynamicWeb 9 — Unauthenticated RCE in Dynamicweb 9 and Dynamicweb 8

EPSS 0.6%CVSS 10.0
critical.is priorityof 100
40
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 48.9.489 × 209.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
DynamicWeb 98–CNA
DynamicWeb 99 – < 9.19.79.19.7CNA
DynamicWeb 99.20.0 – < 9.20.39.20.3CNA

Scores by source

NCSC-FI (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refdoc.dynamicweb.dev/documentation/fundamentals/dw10release/security-reports.html#january-19th-2026---unauthenticated-rce-dynamicweb-9-and-dynamicweb-8