What’s Vulnerable › Vulnerabilities

CVE-2020-12639

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-04 · updated 2026-06-17
• Weakness: CWE-79

Description

phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.

Affected products

• PHPList: before 3.5.3 — fixed in 3.5.3

How to fix

Upgrade to a fixed version: PHPList 3.5.3. Check the vendor advisory for mitigations.

References

• https://github.com/phpList/phplist3/compare/3.5.2...3.5.3
• https://www.phplist.org/newslist/phplist-3-5-3-release-notes/
• https://github.com/phpList/phplist3/compare/3.5.2...3.5.3
• https://www.phplist.org/newslist/phplist-3-5-3-release-notes/

Get alerted when CVE-2020-12639 or the next vulnerability affects your stack