CVE-2024-9517

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-11-02 Modified: 2026-11-09 First seen: 2026-11-02 Status: active

Attack Surface

Network No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: Changed
C: Low
I: Low
A: None

Description

The refresh token grant type in WSO2 products fails to re-validate account status before issuing new access tokens. This weakness allows an attacker to obtain valid access tokens for user accounts even after they have been blocked by the user store, bypassing account lockout mechanisms. This vulnerability can lead to unauthorized access to user accounts and their associated resources. Attackers can leverage this to perform actions on behalf of blocked users, potentially leading to privilege escalation or data exfiltration depending on the permissions of the compromised account.

Affected Software (62)

VendorProductVersion
WSO2 WSO2 API Control Plane 4.5.0 < 4.5.0.10
WSO2 WSO2 API Control Plane 4.5.0 < 4.5.0.10
WSO2 WSO2 API Manager 3.1.0 < 3.1.0.308
WSO2 WSO2 API Manager 3.2.0 < 3.2.0.429
WSO2 WSO2 API Manager 3.2.1 < 3.2.1.49
WSO2 WSO2 API Manager 4.0.0 < 4.0.0.315
WSO2 WSO2 API Manager 4.1.0 < 4.1.0.214
WSO2 WSO2 API Manager 4.2.0 < 4.2.0.149
WSO2 WSO2 API Manager 4.3.0 < 4.3.0.62
WSO2 WSO2 API Manager 4.4.0 < 4.4.0.25
WSO2 WSO2 API Manager 4.5.0 < 4.5.0.9
WSO2 WSO2 API Manager 3.1.0 < 3.1.0.308
WSO2 WSO2 API Manager 3.2.0 < 3.2.0.429
WSO2 WSO2 API Manager 3.2.1 < 3.2.1.49
WSO2 WSO2 API Manager 4.0.0 < 4.0.0.315
WSO2 WSO2 API Manager 4.1.0 < 4.1.0.214
WSO2 WSO2 API Manager 4.2.0 < 4.2.0.149
WSO2 WSO2 API Manager 4.3.0 < 4.3.0.62
WSO2 WSO2 API Manager 4.4.0 < 4.4.0.25
WSO2 WSO2 API Manager 4.5.0 < 4.5.0.9
WSO2 WSO2 Carbon OAuth 6.4.2 < 6.4.2.148
WSO2 WSO2 Carbon OAuth 6.4.111 < 6.4.111.122
WSO2 WSO2 Carbon OAuth 6.4.176 < 6.4.176.26
WSO2 WSO2 Carbon OAuth 6.4.180 < 6.4.180.10
WSO2 WSO2 Carbon OAuth 6.8.0 < 6.8.0.44
WSO2 WSO2 Carbon OAuth 6.9.6 < 6.9.6.21
WSO2 WSO2 Carbon OAuth 6.11.21 < 6.11.21.64
WSO2 WSO2 Carbon OAuth 6.13.16 < 6.13.16.13
WSO2 WSO2 Carbon OAuth 6.13.19 < 6.13.19.7
WSO2 WSO2 Carbon OAuth 6.13.27 < 6.13.27.1
Showing 30 of 62 entries

Bug Bounty Relevance

50 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.18%
Raw Score 0.001800
Percentile 7.7%
Date 2026-11-10

EPSS Trend

2026-11-10
0.00180
2026-11-09
0.00180
2026-11-08
0.00180
2026-11-07
0.00180
2026-11-06
0.00180
2026-11-05
0.00180
2026-11-04
0.00180
2026-11-03
0.00180

Intelligence Sources

mitre ref →
nvd ref →