CVE-2018-1778
IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user’s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.45% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- ibm/api connect
- Source
- psirt@us.ibm.com
EPSS 3.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.ibm.com/support/docview.wss?uid=ibm10733883Patch, Vendor Advisory
- http://www.securityfocus.com/bid/106313Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/148801VDB Entry, Vendor Advisory
- http://www.ibm.com/support/docview.wss?uid=ibm10733883Patch, Vendor Advisory
- http://www.securityfocus.com/bid/106313Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/148801VDB Entry, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.