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HIGH

CVE-2026-89254

CVSS v3

8.7

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the CustomizeUser plugin where the field_name parameter is stored raw without sanitization. Administrators can inject malicious scripts via the add.json.php endpoint that execute when viewing extra info pages or profile forms that render the typeToHTML function.

Technical details

Published
2026-09-11
Last Modified
2026-09-11

Frequently asked questions

What is CVE-2026-89254?

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the CustomizeUser plugin where the field_name parameter is stored raw without sanitization. Administrators can inject malicious scripts via the add.json.php endpoint that execute when viewing extra info pages or profile forms that render the typeToHTML function.

Is CVE-2026-89254 actively exploited?

Active exploitation of CVE-2026-89254 has not been confirmed. Its EPSS score was 0.4% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-89254?

CVE-2026-89254 has a CVSS v3 base score of 8.7 (HIGH severity).

Is CVE-2026-89254 affecting your environment?

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