CVE-2026-104730 sunshinephotocart CVE debrief

Who should care

WordPress site administrators, security teams, and developers using the Sunshine Photo Cart plugin should assess exposure and apply necessary mitigations to prevent potential attacks.

Why it matters

The CVE-2026-104730 vulnerability in the Sunshine Photo Cart plugin for WordPress allows unauthenticated PHP object injection, potentially leading to severe impacts if exploited in conjunction with another plugin or theme containing a POP chain. WordPress administrators and security teams should assess exposure and apply updates or mitigations.

• Potential for arbitrary file deletion if a POP chain is present via another plugin or theme.
• Possible retrieval of sensitive data if a POP chain is present via another plugin or theme.
• Potential for code execution if a POP chain is present via another plugin or theme.
• Verification of plugin version and presence of POP chains in other plugins or themes is necessary.

Technical summary

The Sunshine Photo Cart plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.7.4. The vulnerability exists due to deserialization of untrusted input, allowing unauthenticated attackers to inject PHP objects. However, no known POP chain is present in the vulnerable software, limiting the impact unless another plugin or theme containing a POP chain is installed.

Defensive priority

High priority for WordPress site administrators and security teams to assess exposure and apply mitigations.

Recommended defensive actions

• Assess exposure by checking if the vulnerable plugin version is installed and if another plugin or theme with a POP chain is present.
• Apply updates or patches provided by the vendor to fix the vulnerability.
• Monitor for suspicious activity related to PHP object injection.
• Consider implementing additional security measures such as web application firewalls or intrusion detection systems.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The vulnerability was reported by [email protected] and is documented in the CVE Program record and NVD vulnerability detail pages. The affected plugin version is 3.7.4 and earlier. Evidence is limited to reporter statements and CVE Program records. Defenders should verify plugin versions, assess exposure, and monitor for suspicious activity related to PHP object injection.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.