TagDiv Composer <= 5.3 — Unauthenticated Arbitrary PHP Object Instantiation
CVE-2024-13645Published · Updated Action summary
Affected: ≤5.3Update to 5.4 or newer
All remediation steps- 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?
tagDiv Composer td-composer
- Affected≤ 5.3
- Patched in5.4
Update to 5.4 or newer.
You are affected if you run ≤ 5.3. Version 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 tagDiv Composer.
- 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 5.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch tagDiv Composer to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Michael Mazzolini.
The tagDiv Composer plugin for WordPress is vulnerable to PHP Object Instantiation in all versions up to, and including, 5.3 via module parameter. This makes it possible for unauthenticated attackers to Instantiate a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
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 tagDiv Composer
All 23| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤5.4.7Update to 5.4.8 | CVE-2026-12561 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤5.4.5Update to 5.4.6 | CVE-2026-57734 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤5.4.2Update to 5.4.3 | CVE-2025-50001 | |
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution ≤5.4.4Update to 5.4.5 | CVE-2026-39712 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤5.4.4Update to 5.4.5 | CVE-2026-39692 |
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤5.4.7Update to 5.4.8
- Medium6.1Reflected Cross-Site Scripting
≤5.4.5Update to 5.4.6
- Medium6.1Reflected Cross-Site Scripting
≤5.4.2Update to 5.4.3
- Medium6.5Unauthenticated Arbitrary Shortcode Execution
≤5.4.4Update to 5.4.5
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤5.4.4Update to 5.4.5
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.