What’s Vulnerable › Vulnerabilities

CVE-2026-85210: Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-10-08
• Weakness: CWE-862

Description

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.

Affected products

• oppia: through 3.5.2

References

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

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