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Vulnerability record · CVE-2025-65676 · published 26 November 2025

CVE-2025-65676: Classroomio cross-site scripting vulnerability

Classroomio · Classroomio

Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG cover images.

5.4 CVSS 3.1 Medium EPSS 0.24% · top 86.9% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
5 Jul 2026Last modified by NVD

Description

Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG cover images.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Rivek619/CVE-2025-65676 ExploitThird Party Advisory
https://github.com/classroomio/classroomio Product
https://github.com/Rivek619/CVE-2025-65676 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2025-65669Classroomio missing authorization vulnerabilityAn issue was discovered in classroomio 0.1.13. Student accounts are able to delete courses from the Explore page without any authorization or authent…EPSS 0.47%8.1CVE-2025-67298Classroomio authentication bypass by spoofing vulnerabilityAn issue in ClasroomIO before v.0.2.6 allows a remote attacker to escalate privileges via the endpoints /api/verify and /rest/v1/profileEPSS 0.22%7.5CVE-2025-65672Classroomio insecure direct object reference vulnerabilityInsecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows unauthorized share and invite access to course settings.EPSS 0.35%5.4CVE-2025-65675Classroomio cross-site scripting vulnerabilityStored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG pr…EPSS 0.24%4.3CVE-2025-65670Classroomio insecure direct object reference vulnerabilityAn Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endpoints by manipulating course I…EPSS 0.24%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed

Source: NIST National Vulnerability Database (record CVE-2025-65676), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.