WordPress Infinite Scroll – Ajax Load More <= 5.5.3 — Cross-Site Request Forgery to PHAR Deserialization
CVE-2022-2433Published · Updated Action summary
Affected: ≤5.5.3Update to 5.5.4 or newer
All remediation steps- Severity
- High7.5
- CVSS
- 7.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:HAttack complexity- High
PR:NPrivileges required- None
UI:RUser interaction- Required
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-502 PHP Object Injection
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Ajax Load More – Infinite Scroll, Load More, & Lazy Load ajax-load-more
- Affected≤ 5.5.3
- Patched in5.5.4
Update to 5.5.4 or newer.
You are affected if you run ≤ 5.5.3. Version 5.5.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Ajax Load More – Infinite Scroll, Load More, & Lazy Load.
- 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
- Update to version 5.5.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Ajax Load More – Infinite Scroll, Load More, & Lazy Load to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Rasoul Jahanshahi.
The WordPress Infinite Scroll – Ajax Load More plugin for WordPress is vulnerable to deserialization of untrusted input via the 'alm_repeaters_export' parameter in versions up to, and including 5.5.3. This makes it possible for unauthenticated users to call files using a PHAR wrapper, granted they can trick a site administrator into performing an action such as clicking on a link, that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.
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 Ajax Load More – Infinite Scroll, Load More, & Lazy Load
All 19| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Unauthenticated SQL Injection ≤8.0.0Update to 8.0.1 | CVE-2026-15360 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting <7.8.4Update to 7.8.4 | CVE-2026-6495 | |
| Medium5.3 | Incorrect Authorization to Unauthenticated Private/Draft Post Title and Excerpt Exposure ≤7.8.1Update to 7.8.2 | CVE-2025-15525 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure ≤7.6.0.2Update to 7.6.1 | CVE-2025-59582 | |
| Medium6.4 | Authenticated(Contributor+) Stored Cross-Site Scripting ≤7.4.0.1Update to 7.4.1 | CVE-2025-4775 |
- High7.5Unauthenticated SQL Injection
≤8.0.0Update to 8.0.1
- High7.2Unauthenticated Stored Cross-Site Scripting
<7.8.4Update to 7.8.4
- Medium5.3Incorrect Authorization to Unauthenticated Private/Draft Post Title and Excerpt Exposure
≤7.8.1Update to 7.8.2
- Medium5.3Unauthenticated Sensitive Information Exposure
≤7.6.0.2Update to 7.6.1
- Medium6.4Authenticated(Contributor+) Stored Cross-Site Scripting
≤7.4.0.1Update to 7.4.1
Same weakness (PHP Object Injection)
All PHP Object Injection| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity high, CVSS 7.5
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.