01 Record

CVE-2025-8386

AVEVA Application Server IDE Basic Cross-site Scripting

HighPUBLISHEDCNA: icscert

CNA base score7.2 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H

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02 Description

AVEVA Application Server IDE Basic Cross-site Scripting

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.9% of scored records. A rank, not a probability.

NVD base score

7.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-07.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-11-14 23:57Z11 MO AGO

Last updated

2025-11-17 16:56Z11 MO AGO

Reserved

2025-07-30

Assigning CNA

icscert

Record state

PUBLISHED

Severity

High (CVSS 7.2)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H

Weaknesses

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)Variant

Data version

5.2

Document digest

f0f2778c798d5d65ccbf796252b95a0d10214f92945b577498cdd58dd76ed454

05 Affected products

VendorProductVersionsPlatforms

AVEVAApplication Server0 to Versions 2023 R2 SP1 P02—

06 References

07 Remediation

AVEVA recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. Users using affected product versions should apply security updates to mitigate the risk of exploit. All affected versions of the Application Server IDE can be fixed by upgrading to AVEVA System Platform 2023 R2 SP1 P03 https://softwaresupportsp.aveva.com/en-US/downloads/products/details/d32b2534-9601-4beb-ac78-046ca2ef594d or higher. The following general defensive measures are recommended: * Audit assigned permissions to ensure that only trusted users are added to the "aaConfigTools" OS Group. For additional information on Application Server OS Security groups and accounts, see https://docs.aveva.com/bundle/sp-install/page/738031.html For more information, see AVEVA's Security Bulletin AVEVA-2025-005 https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2025-005.pdf or AVEVA's bulletins page https://www.aveva.com/en/support-and-success/cyber-security-updates/ .