CVE-2026-91707 Elegant Themes CVE debrief

Who should care

Defenders responsible for WordPress installations using the Divi theme should assess exposure and prioritize verification and remediation. This includes reviewing and updating the Divi theme, restricting user permissions, and monitoring for suspicious activity. Security teams and vulnerability management teams should also prioritize verification and remediation to prevent exploitation.

Why it matters

The Divi theme for WordPress is vulnerable to arbitrary shortcode execution, allowing unauthenticated attackers to execute malicious shortcodes. Defenders should prioritize verification and remediation to prevent exploitation.

• Unauthenticated attackers can execute arbitrary shortcodes, potentially leading to malicious activity
• Defenders must verify and update the Divi theme to prevent exploitation
• Successful exploitation could result in malicious shortcode execution, requiring prompt defensive action

Technical summary

The Divi theme for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.11.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. The vulnerability is classified as MEDIUM severity with a CVSS score of 5.3. Defenders should prioritize verifying and updating the Divi theme to a version that addresses this vulnerability.

Defensive priority

Defenders should prioritize verifying and updating the Divi theme to a version that addresses this vulnerability.

Recommended defensive actions

• Verify the Divi theme version and update to a patched version if necessary
• Review and restrict user permissions to prevent unauthorized shortcode execution
• Monitor for suspicious activity related to shortcode execution
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• 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 CVE record and NVD entry provide details on the vulnerability, including its description and CVSS score of 5.3. The vulnerability is classified as MEDIUM severity. The Divi theme's failure to properly validate values before running do_shortcode enables unauthenticated attackers to execute arbitrary shortcodes. Official sources, including the CVE Program and NVD, confirm the vulnerability. The CVE record was published on 2026-09-18T07:16:51.710Z and has not been modified since then.

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.