CVE-2025-8386 (CVSS 6.9)

Description

The vulnerability, if exploited, could allow an authenticated miscreant (with privilege of "aaConfigTools") to tamper with App Objects' help files and persist a cross-site scripting (XSS) injection that when executed by a victim user, can result in horizontal or vertical escalation of privileges. The vulnerability can only be exploited during config-time operations within the IDE component of Application Server. Run-time components and operations are not affected.

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CVSS v3.1 Score

6.9

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

Weakness Type (CWE)

CWE-80 CWE-80

References

Other References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-317-02.json https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin-AVEVA-2025-005.pdf https://www.cisa.gov/news-events/ics-advisories/icsa-25-317-02

Frequently Asked Questions

What is CVE-2025-8386? +

The vulnerability, if exploited, could allow an authenticated miscreant (with privilege of "aaConfigTools") to tamper with App Objects' help files and persist a cross-site scripting (XSS) injection that when executed by a victim user, can result in horizontal or vertical escalation of privileges. The vulnerability can only be exploited during config-time operations within the IDE component of Application Server. Run-time components and operations are not affected. It has a CVSS v3.1 base score of 6.9 (MEDIUM).

How severe is CVE-2025-8386? +

CVE-2025-8386 has a CVSS v3.1 score of 6.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-8386? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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