CVE-2026-5159

CVE-2026-5159 is a medium-severity vulnerability with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Description

The Royal Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Instagram Feed widget's 'instagram_follow_text' setting in all versions up to, and including, 1.7.1056 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note that exploitation requires that an administrator has previously configured the Instagram Feed widget with a valid Instagram access token on the site.

Frequently asked questions

What is CVE-2026-5159?
The Royal Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Instagram Feed widget's 'instagram_follow_text' setting in all versions up to, and including, 1.7.1056 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note that exploitation requires that an administrator has previously configured the Instagram Feed widget with a valid Instagram access token on the site.
How severe is CVE-2026-5159?
CVE-2026-5159 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-5159 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5159?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5159 have an EU (EUVD) identifier?
Yes. CVE-2026-5159 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27189.
When was CVE-2026-5159 published?
CVE-2026-5159 was published on 2026-05-05 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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