CVE-2016-20063
CVE-2016-20063 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-89.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- CVSS v4: 7.1
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2016-10876
- Weakness: CWE-89
- Published:
- Last modified:
Description
Single Personal Message 1.0.3 contains an SQL injection vulnerability that allows authenticated users to execute arbitrary SQL queries by injecting malicious code through the message parameter. Attackers can access the admin interface and supply crafted SQL statements in the message parameter to extract sensitive database information including user credentials and site configuration data.
Frequently asked questions
- What is CVE-2016-20063?
- Single Personal Message 1.0.3 contains an SQL injection vulnerability that allows authenticated users to execute arbitrary SQL queries by injecting malicious code through the message parameter. Attackers can access the admin interface and supply crafted SQL statements in the message parameter to extract sensitive database information including user credentials and site configuration data.
- How severe is CVE-2016-20063?
- CVE-2016-20063 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
- Is CVE-2016-20063 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2016-20063?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2016-20063 have an EU (EUVD) identifier?
- Yes. CVE-2016-20063 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-10876.
- When was CVE-2016-20063 published?
- CVE-2016-20063 was published on 2026-06-09 and last updated on 2026-06-17.
References
- http://lenonleite.com.br/
- http://target/wp-admin/admin.php?page=simple-personal-message-outbox&action=view&message=0%20UNION%20SELECT%201,2.3,name,5,slug,7,8,9,10,11,12%20FROM%20wp_terms%20WHERE%20term_id=1
- https://wordpress.org/plugins/simple-personal-message/
- https://www.exploit-db.com/exploits/40870
- https://www.vulncheck.com/advisories/single-personal-message-wordpress-plugin-sql-injection
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