XSS in Wordpress
CVE-2020-4047
In affected versions of WordPress, authenticated users with upload permissions (like authors) are able to inject JavaScript into some media file attachment pages in a certain way. This can lead to script execution in the context of a highe…
EPSS: 0.035 (87.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N.
Affected products
- Wordpress
- Wordpress Wordpress-develop — versions >= 5.4.0, < 5.4.2, >= 5.3.0, < 5.3.4, >= 5.2.0, < 5.2.7
- Debian Debian_linux — versions 8.0, 9.0, 10.0
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_DEBIAN)
- security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security-advisories@github.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-4047?
- CVE-2020-4047 is a medium-severity vulnerability in Wordpress, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.8/10. Published 2020-06-12.
- How severe is CVE-2020-4047?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2020-4047 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.