CVE-2026-11551
CVE-2026-11551 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-640.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38097
- Weakness: CWE-640
- Published:
- Last modified:
Description
The Branda plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 3.4.29. This is due to the plugin not properly validating a user's identity prior to updating their password. This makes it possible for unauthenticated attackers to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.
Frequently asked questions
- What is CVE-2026-11551?
- The Branda plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 3.4.29. This is due to the plugin not properly validating a user's identity prior to updating their password. This makes it possible for unauthenticated attackers to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.
- How severe is CVE-2026-11551?
- CVE-2026-11551 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-11551 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-11551?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-11551 have an EU (EUVD) identifier?
- Yes. CVE-2026-11551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38097.
- When was CVE-2026-11551 published?
- CVE-2026-11551 was published on 2026-06-20 and last updated on 2026-06-23.
References
- https://plugins.trac.wordpress.org/browser/branda-white-labeling/tags/3.4.29/inc/modules/login-screen/signup-password.php#L232
- https://plugins.trac.wordpress.org/changeset/3568291/branda-white-labeling/trunk/inc/modules/login-screen/signup-password.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/56f13af3-71b6-42d4-9fda-a75778f32091?source=cve
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