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

Quick assessment

Affected
oppia oppia
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Oppia是Oppia组织开源的一款在线学习工具。 Oppia 3.5.2及之前版本存在授权问题漏洞，该漏洞源于core/controllers/admin.py中的AdminRoleHandler GET端点被标记为open_access，导致任意注册用户可枚举特权账户和角色，并可通过filter_criterion参数检索持有特定角色的用户名、禁用标志和受管主题标识符。

CVSS 4.3 · Medium EPSS 0.20% · P10

Affected Version Matrix 1

VendorProduct Version RangeStatus
oppia oppia ≤ 3.5.2 affected
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I. Basic Information for CVE-2026-85210

Vulnerability Information
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Vulnerability Title
Oppia through 3.5.2 Missing Authorization on AdminRoleHandler GET
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Oppia 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oppia是Oppia组织开源的一款在线学习工具。 Oppia 3.5.2及之前版本存在授权问题漏洞，该漏洞源于core/controllers/admin.py中的AdminRoleHandler GET端点被标记为open_access，导致任意注册用户可枚举特权账户和角色，并可通过filter_criterion参数检索持有特定角色的用户名、禁用标志和受管主题标识符。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
oppia oppia 0 ~ 3.5.2 -

II. Public POCs for CVE-2026-85210

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III. Intelligence Information for CVE-2026-85210

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Vendor Advisories for CVE-2026-85210 (1)

Other References for CVE-2026-85210 (1)

IV. Related Vulnerabilities

Same product: oppia
Same vendor: oppia
Same weakness: CWE-862

V. Comments for CVE-2026-85210

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