User Profile Picture < 2.6.0 - Authenticated Insecure Direct Object Reference
Strategic Overview
- Status
- Patched in 2.6.0
- Affected Plugin
- User Profile Picture
- Affected Version
< 2.6.0- CVSS
- 4.3Medium
- Weakness type
- CWE-639 · Authorization Bypass Through User-Controlled Key
- CVE
CVE-2021-24473
At a glance
CVE-2021-24473 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the User Profile Picture WordPress plugin, affecting versions < 2.6.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 2.6.0; sites on affected versions should update now. Disclosed June 2021, reported by apple502j.
Vulnerability Overview
The User Profile Picture WordPress plugin before 2.6.0 was affected by an IDOR issue, allowing users with the upload_image capability (by default author and above) to change and delete the profile pictures of other users (including those with higher roles).
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-639: Authorization Bypass Through User-Controlled Key
Reaching this weakness in User Profile Picture < 2.6.0 takes any authenticated account. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.
Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For User Profile Picture the fix is 2.6.0: builds < 2.6.0 are affected, anything from 2.6.0 onward is not.
Remediation
Update to version 2.6.0, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: User Profile Picture 2.6.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in User Profile Picture
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