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CVE-2025-26530: Reflected XSS via question bank filter

8.3 CVSS

Description

The question bank filter required additional sanitizing to prevent a reflected XSS risk.

Classification

CVE ID: CVE-2025-26530

CVSS Base Severity: HIGH

CVSS Base Score: 8.3

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

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Affected Products

Vendor: Moodle Project

Product: moodle

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 12.36% (scored less or equal to compared to others)

EPSS Date: 2025-03-25 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-26530
https://moodle.org/mod/forum/discuss.php?d=466146
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84146

Timeline