Credential phishing via unchecked post-save redirect
Published Apr 5, 2024 · Updated Aug 2, 2024
Open redirect in InstantCMS 2 before 2.16.2 allows remote authenticated users to send profile editors to an attacker-controlled site. The profile-edit flow accepts a protocol-relative back query value and uses it as the post-save destination without restricting redirects to the same origin. Exploitation requires a signed-in victim to open a crafted edit URL and save the profile; a convincing destination can then capture credentials the victim enters.
Summary
What happened
Open redirect in InstantCMS 2 before 2.16.2 allows remote authenticated users to send profile editors to an attacker-controlled site. The profile-edit flow accepts a protocol-relative back query value and uses it as the post-save destination without restricting redirects to the same origin. Exploitation requires a signed-in victim to open a crafted edit URL and save the profile; a convincing destination can then capture credentials the victim enters.
The record
- CVE
- CVE-2024-31213
- Published
- Apr 5, 2024
- Updated
- Aug 2, 2024
- Vendor
- InstantCMS Team
- Product
- InstantCMS
- Classifications
- CWE-601, T1056.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 5, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=2.16.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Profile back-parameter redirect proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo