Unauthenticated RCE in Dynamicweb 9 and Dynamicweb 8
Priority MEDIUM 50CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00603 49th percentileScored 2026-11-07
Fix Fixed DynamicWeb 9 (DynamicWeb): 9.19.7, 9.20.3, 9.21.0 +1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| DynamicWeb | DynamicWeb 9 | 8; 9 to before 9.19.7; 9.20.0 to before 9.20.3 | 9.19.7, 9.20.3, 9.21.0, 10 | Patch available | CNA |
- DynamicWeb 9 VendorDynamicWeb Affected 8; 9 to before 9.19.7; 9.20.0 to before 9.20.3 Fixed in 9.19.7, 9.20.3, 9.21.0, 10 Patch available CNA
Remediation
- Fix · CNA DynamicWeb 9 (DynamicWeb) Fixed in 9.19.7, 9.20.3, 9.21.0, 10
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2731
- 2026-10-03 Alias added: GHSA-r435-hw3q-c6g9
- 2026-10-08 EPSS moved to the 50th–90th percentile
- 2026-10-25 EPSS moved to the below the 50th percentile
Sources
- CVE-2026-2731 · CVE Program
- CVE-2026-2731 · NVD
- FIRST EPSS
- GHSA-r435-hw3q-c6g9 · GitHub Advisory Database · CC BY 4.0
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