CVE-2026-85210

MEDIUM 4.3

Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

Oppia's AdminRoleHandler GET endpoint in core/controllers/admin.py is decorated with open_access, allowing any registered user to enumerate privileged accounts and roles. Attackers can query the endpoint with filter_criterion parameters to retrieve usernames holding specific roles, banned flags, and managed topic identifiers without authorization.

CWE	CWE-862
Vendor	oppia
Product	oppia
Published	Sep 3, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

oppia / oppia

0 ≤ 3.5.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/oppia/oppia/issues/26652 github.com: https://github.com/oppia/oppia github.com: https://github.com/oppia/oppia/blob/v3.5.2/core/controllers/admin.py vulncheck.com: https://www.vulncheck.com/advisories/oppia-through-3.5.2-missing-authorization-on-adminrolehandler-get

Credits

🔍 George Chen