ZM Ajax Login & Register <= 2.0.2 — Authentication Bypass
CVE-2023-2027Published · Updated Action summary
Affected: ≤2.0.2No patch available
What to do until a fix ships- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
ZM Ajax Login & Register zm-ajax-login-register
- Affected≤ 2.0.2
- PatchedNo fix yet
No patched version available.
You are affected if you run ≤ 2.0.2. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ZM Ajax Login & Register.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch ZM Ajax Login & Register to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
The ZM Ajax Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.0.2. This is due to insufficient verification on the user being supplied during a Facebook login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the username.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in ZM Ajax Login & Register
All 3| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Local File Inclusion <1.1.0Update to 1.1.0 | CVE-2015-4153 | |
| Medium6.1 | Cross-Site Scripting ≤1.0.9Update to 1.1.0 | CVE-2015-4465 |
- Critical9.8Local File Inclusion
<1.1.0Update to 1.1.0
- Medium6.1Cross-Site Scripting
≤1.0.9Update to 1.1.0
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.