TI-2024-04502 Aliases CVE-2024-4838 GHSA-43c9-25jg-rxm4

ConvertPlus <= 3.5.26 - Authenticated (Contributor+) PHP Object Injection

LOW 34CWE-502Published 2024-05-16 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

The ConvertPlus plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.5.26 via deserialization of untrusted input from the 'settings_encoded' attribute of the 'smile_modal' shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00594 48th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Brainstorm Force	ConvertPlus	up to 3.5.26	—	No fix listed	CNA

ConvertPlus VendorBrainstorm Force Affected up to 3.5.26 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-4838
2026-10-03 Alias added: GHSA-43c9-25jg-rxm4

References

Other 2

TI-2025-19878 WordPress SureTriggers <= 1.0.82 - Privilege Escalation Vulnerability CVSS 3.1CRITICAL 9.8
TI-2025-02708 Incorrect comparison in Brainstorm Force OttoKit: All-in-One Automation Platform CVSS 3.1HIGH 8.1
TI-2025-05347 SureForms < 1.7.2 - Reflected XSS CVSS 3.1MEDIUM 5.8
TI-2020-18849 Spectra < 1.15.0 - Contributor+ Stored Cross-Side Scripting CVSS 3.1MEDIUM 5.4
TI-2025-03050 SureForms < 1.4.4 - Contributor+ Settings Update CVSS 3.1MEDIUM 4.9
TI-2025-11950 Starter Templates <= 4.4.41 - Authenticated (Author+) Arbitrary File Upload via WXR Upload Bypass CVSS 3.1HIGH 8.8

See all 181 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences